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---
language:
- it
license: cc-by-sa-4.0
task_categories:
- text-classification
- text-ranking
- question-answering
pretty_name: BLiMP-IT
size_categories:
- 10K<n<100K
tags:
- linguistics
- syntax
- morphology
- acceptability
- minimal-pairs
- language-model-evaluation
- italian
configs:
- config_name: blimp_it_agreement_and_inflection_dp
data_files:
- split: test
path: data/test/blimp_it_original_agreement_and_inflection_dp/test.jsonl
- config_name: blimp_it_non_local_dependencies_adjunctisland
data_files:
- split: test
path: data/test/blimp_it_original_non_local_dependencies_adjunctisland/test.jsonl
- config_name: blimp_it_non_local_dependencies_atb_affirmative2
data_files:
- split: test
path: data/test/blimp_it_original_non_local_dependencies_atb_affirmative2/test.jsonl
- config_name: blimp_it_non_local_dependencies_atb_affirmative_mi
data_files:
- split: test
path: data/test/blimp_it_original_non_local_dependencies_atb_affirmative_mi/test.jsonl
- config_name: blimp_it_non_local_dependencies_atb_affirmative_ti
data_files:
- split: test
path: data/test/blimp_it_original_non_local_dependencies_atb_affirmative_ti/test.jsonl
- config_name: blimp_it_non_local_dependencies_atb_interrogative_gap_nogap_clitic
data_files:
- split: test
path: data/test/blimp_it_original_non_local_dependencies_atb_interrogative_gap_nogap_clitic/test.jsonl
- config_name: blimp_it_non_local_dependencies_atb_interrogative_gap_nogap_np_aux
data_files:
- split: test
path: data/test/blimp_it_original_non_local_dependencies_atb_interrogative_gap_nogap_np_aux/test.jsonl
- config_name: blimp_it_non_local_dependencies_atb_interrogative_nogap_gap_clitic
data_files:
- split: test
path: data/test/blimp_it_original_non_local_dependencies_atb_interrogative_nogap_gap_clitic/test.jsonl
- config_name: blimp_it_non_local_dependencies_atb_interrogative_nogap_gap_np_aux
data_files:
- split: test
path: data/test/blimp_it_original_non_local_dependencies_atb_interrogative_nogap_gap_np_aux/test.jsonl
- config_name: blimp_it_non_local_dependencies_atb_interrogative_nogap_nogap_clitic
data_files:
- split: test
path: data/test/blimp_it_original_non_local_dependencies_atb_interrogative_nogap_nogap_clitic/test.jsonl
- config_name: blimp_it_non_local_dependencies_atb_interrogative_nogap_nogap_np_aux
data_files:
- split: test
path: data/test/blimp_it_original_non_local_dependencies_atb_interrogative_nogap_nogap_np_aux/test.jsonl
- config_name: blimp_it_non_local_dependencies_atb_rc_object_gap_nogap
data_files:
- split: test
path: data/test/blimp_it_original_non_local_dependencies_atb_rc_object_gap_nogap/test.jsonl
- config_name: blimp_it_non_local_dependencies_atb_rc_object_nogap_gap
data_files:
- split: test
path: data/test/blimp_it_original_non_local_dependencies_atb_rc_object_nogap_gap/test.jsonl
- config_name: blimp_it_non_local_dependencies_atb_rc_object_nogap_nogap
data_files:
- split: test
path: data/test/blimp_it_original_non_local_dependencies_atb_rc_object_nogap_nogap/test.jsonl
- config_name: blimp_it_non_local_dependencies_complexnpisland
data_files:
- split: test
path: data/test/blimp_it_original_non_local_dependencies_complexnpisland/test.jsonl
- config_name: blimp_it_non_local_dependencies_coordinatestructureconstraint_complex_object_extraction
data_files:
- split: test
path: data/test/blimp_it_original_non_local_dependencies_coordinatestructureconstraint_complex_object_extraction/test.jsonl
- config_name: blimp_it_non_local_dependencies_left_branch_island_echo_question
data_files:
- split: test
path: data/test/blimp_it_original_non_local_dependencies_left_branch_island_echo_question/test.jsonl
- config_name: blimp_it_non_local_dependencies_parasiticgap_adjunctisland1
data_files:
- split: test
path: data/test/blimp_it_original_non_local_dependencies_parasiticgap_adjunctisland1/test.jsonl
- config_name: blimp_it_non_local_dependencies_parasiticgap_adjunctisland2
data_files:
- split: test
path: data/test/blimp_it_original_non_local_dependencies_parasiticgap_adjunctisland2/test.jsonl
- config_name: blimp_it_non_local_dependencies_rc_object
data_files:
- split: test
path: data/test/blimp_it_original_non_local_dependencies_rc_object/test.jsonl
- config_name: blimp_it_non_local_dependencies_rc_object_nogap
data_files:
- split: test
path: data/test/blimp_it_original_non_local_dependencies_rc_object_nogap/test.jsonl
- config_name: blimp_it_non_local_dependencies_rc_subject
data_files:
- split: test
path: data/test/blimp_it_original_non_local_dependencies_rc_subject/test.jsonl
- config_name: blimp_it_non_local_dependencies_rc_subject_nogap
data_files:
- split: test
path: data/test/blimp_it_original_non_local_dependencies_rc_subject_nogap/test.jsonl
- config_name: blimp_it_non_local_dependencies_sententialsubjectisland
data_files:
- split: test
path: data/test/blimp_it_original_non_local_dependencies_sententialsubjectisland/test.jsonl
- config_name: blimp_it_non_local_dependencies_wh_extraction_embedd2_clitic_inanimate
data_files:
- split: test
path: data/test/blimp_it_original_non_local_dependencies_wh_extraction_embedd2_clitic_inanimate/test.jsonl
- config_name: blimp_it_non_local_dependencies_wh_extraction_embedd2_np_inanimate
data_files:
- split: test
path: data/test/blimp_it_original_non_local_dependencies_wh_extraction_embedd2_np_inanimate/test.jsonl
- config_name: blimp_it_non_local_dependencies_wh_extraction_embedd2_np_inanimate_dem
data_files:
- split: test
path: data/test/blimp_it_original_non_local_dependencies_wh_extraction_embedd2_np_inanimate_dem/test.jsonl
- config_name: blimp_it_non_local_dependencies_wh_extraction_embedd_clitic_inanimate
data_files:
- split: test
path: data/test/blimp_it_original_non_local_dependencies_wh_extraction_embedd_clitic_inanimate/test.jsonl
- config_name: blimp_it_non_local_dependencies_wh_extraction_embedd_np_inanimate
data_files:
- split: test
path: data/test/blimp_it_original_non_local_dependencies_wh_extraction_embedd_np_inanimate/test.jsonl
- config_name: blimp_it_non_local_dependencies_wh_extraction_embedd_np_inanimate_dem
data_files:
- split: test
path: data/test/blimp_it_original_non_local_dependencies_wh_extraction_embedd_np_inanimate_dem/test.jsonl
- config_name: blimp_it_non_local_dependencies_wh_island_embedd
data_files:
- split: test
path: data/test/blimp_it_original_non_local_dependencies_wh_island_embedd/test.jsonl
- config_name: blimp_it_non_local_dependencies_wh_island_root
data_files:
- split: test
path: data/test/blimp_it_original_non_local_dependencies_wh_island_root/test.jsonl
- config_name: blimp_it_non_local_dependencies_wh_island_root_affirmative_dove
data_files:
- split: test
path: data/test/blimp_it_original_non_local_dependencies_wh_island_root_affirmative_dove/test.jsonl
- config_name: conversa_a_agreement_dp
data_files:
- split: test
path: data/test/conversa_a_agreement_dp/test.jsonl
- config_name: conversa_a_agreement_past_particple_pre_v_cl
data_files:
- split: test
path: data/test/conversa_a_agreement_past_particple_pre_v_cl/test.jsonl
- config_name: conversa_a_agreement_past_particple_unacc
data_files:
- split: test
path: data/test/conversa_a_agreement_past_particple_unacc/test.jsonl
- config_name: conversa_a_agreement_psych_verbs_piacere
data_files:
- split: test
path: data/test/conversa_a_agreement_psych_verbs_piacere/test.jsonl
- config_name: conversa_a_agreement_psych_verbs_preoccupare
data_files:
- split: test
path: data/test/conversa_a_agreement_psych_verbs_preoccupare/test.jsonl
- config_name: conversa_a_agreement_subject_nominal_predicate
data_files:
- split: test
path: data/test/conversa_a_agreement_subject_nominal_predicate/test.jsonl
- config_name: conversa_a_agreement_subject_nominal_predicate_attraction
data_files:
- split: test
path: data/test/conversa_a_agreement_subject_nominal_predicate_attraction/test.jsonl
- config_name: conversa_a_agreement_subject_verb_attraction
data_files:
- split: test
path: data/test/conversa_a_agreement_subject_verb_attraction/test.jsonl
- config_name: conversa_a_agreement_subject_verb_cumulative
data_files:
- split: test
path: data/test/conversa_a_agreement_subject_verb_cumulative/test.jsonl
- config_name: conversa_a_agreement_subject_verb_trans
data_files:
- split: test
path: data/test/conversa_a_agreement_subject_verb_trans/test.jsonl
- config_name: conversa_a_agreement_subject_verb_unacc
data_files:
- split: test
path: data/test/conversa_a_agreement_subject_verb_unacc/test.jsonl
- config_name: conversa_a_agreement_subject_verb_unerg
data_files:
- split: test
path: data/test/conversa_a_agreement_subject_verb_unerg/test.jsonl
- config_name: conversa_a_agreement_subject_verb_unerg_trans
data_files:
- split: test
path: data/test/conversa_a_agreement_subject_verb_unerg_trans/test.jsonl
- config_name: conversa_a_agreement_verb_subject_unacc
data_files:
- split: test
path: data/test/conversa_a_agreement_verb_subject_unacc/test.jsonl
- config_name: conversa_b_argument_structure_b_auxiliary_selection_ditranstitives
data_files:
- split: test
path: data/test/conversa_b_argument_structure_b_auxiliary_selection_ditranstitives/test.jsonl
- config_name: conversa_b_argument_structure_b_auxiliary_selection_passive_active_diathesis
data_files:
- split: test
path: data/test/conversa_b_argument_structure_b_auxiliary_selection_passive_active_diathesis/test.jsonl
- config_name: conversa_b_argument_structure_b_auxiliary_selection_transtitives
data_files:
- split: test
path: data/test/conversa_b_argument_structure_b_auxiliary_selection_transtitives/test.jsonl
- config_name: conversa_b_argument_structure_b_auxiliary_selection_unaccusatives
data_files:
- split: test
path: data/test/conversa_b_argument_structure_b_auxiliary_selection_unaccusatives/test.jsonl
- config_name: conversa_b_argument_structure_b_auxiliary_selection_unergatives
data_files:
- split: test
path: data/test/conversa_b_argument_structure_b_auxiliary_selection_unergatives/test.jsonl
- config_name: conversa_b_argument_structure_b_theta_roles
data_files:
- split: test
path: data/test/conversa_b_argument_structure_b_theta_roles/test.jsonl
- config_name: conversa_b_argument_structure_theta_roles
data_files:
- split: test
path: data/test/conversa_b_argument_structure_theta_roles/test.jsonl
- config_name: conversa_c_pronouns_1_2_person_answers
data_files:
- split: test
path: data/test/conversa_c_pronouns_1_2_person_answers/test.jsonl
- config_name: conversa_c_pronouns_1_2_person_elicited_declaratives
data_files:
- split: test
path: data/test/conversa_c_pronouns_1_2_person_elicited_declaratives/test.jsonl
- config_name: conversa_c_pronouns_clitics_answering_with_acc_cl
data_files:
- split: test
path: data/test/conversa_c_pronouns_clitics_answering_with_acc_cl/test.jsonl
- config_name: conversa_c_pronouns_clitics_coordinating_with_acc_cl
data_files:
- split: test
path: data/test/conversa_c_pronouns_clitics_coordinating_with_acc_cl/test.jsonl
- config_name: conversa_c_pronouns_clitics_coordinating_with_dat_cl
data_files:
- split: test
path: data/test/conversa_c_pronouns_clitics_coordinating_with_dat_cl/test.jsonl
- config_name: conversa_c_pronouns_reflexives_other
data_files:
- split: test
path: data/test/conversa_c_pronouns_reflexives_other/test.jsonl
- config_name: conversa_c_pronouns_reflexives_psych_verbs
data_files:
- split: test
path: data/test/conversa_c_pronouns_reflexives_psych_verbs/test.jsonl
- config_name: conversa_c_pronouns_reflexives_unacc
data_files:
- split: test
path: data/test/conversa_c_pronouns_reflexives_unacc/test.jsonl
- config_name: conversa_d_questions_d_answering_questions_with_rc_obj
data_files:
- split: test
path: data/test/conversa_d_questions_d_answering_questions_with_rc_obj/test.jsonl
- config_name: conversa_d_questions_d_answering_questions_with_rc_subj
data_files:
- split: test
path: data/test/conversa_d_questions_d_answering_questions_with_rc_subj/test.jsonl
- config_name: conversa_d_questions_d_answering_wh_adjunct_questions
data_files:
- split: test
path: data/test/conversa_d_questions_d_answering_wh_adjunct_questions/test.jsonl
- config_name: conversa_d_questions_d_answering_wh_argument_questions
data_files:
- split: test
path: data/test/conversa_d_questions_d_answering_wh_argument_questions/test.jsonl
- config_name: conversa_d_questions_d_answering_wh_argument_questions_number_disambiguation
data_files:
- split: test
path: data/test/conversa_d_questions_d_answering_wh_argument_questions_number_disambiguation/test.jsonl
- config_name: conversa_d_questions_d_answering_why_questions
data_files:
- split: test
path: data/test/conversa_d_questions_d_answering_why_questions/test.jsonl
- config_name: conversa_d_questions_d_answering_yes_no_questions
data_files:
- split: test
path: data/test/conversa_d_questions_d_answering_yes_no_questions/test.jsonl
- config_name: conversa_d_questions_d_question_formation_subject_position
data_files:
- split: test
path: data/test/conversa_d_questions_d_question_formation_subject_position/test.jsonl
---
# BLiMP-IT
## Dataset Summary
BLiMP-IT is a linguistically motivated benchmark for evaluating Italian language models through **minimal pairs**.
Each example consists of a grammatical sentence paired with a minimally different ungrammatical counterpart that isolates a single morphosyntactic contrast.
The benchmark is designed to evaluate whether language models assign higher probability to the grammatical sentence than to the ungrammatical one.
The benchmark is inspired by the [English BLiMP](https://huggingface.co/datasets/nyu-mll/blimp) while extending and adapting it to Italian morphosyntax.
It combines phenomena from the original BLiMP with additional contrasts derived from Italian linguistic literature and the [COnVERSA](https://www.hogrefe.com/it/shop/comprensione-delle-opposizioni-morfosintattiche-verbali-attraverso-la-scrittura.html) psycholinguistic assessment battery.
Rather than measuring downstream task performance, BLiMP-IT measures the acquisition of abstract morphosyntactic generalizations.
## Supported Tasks
The dataset is intended for:
- Language model evaluation through sentence probability comparison
- Minimal-pair acceptability evaluation
- Psycholinguistically motivated syntactic evaluation
- Cross-model comparison
- Cross-linguistic comparison with BLiMP and related benchmarks
Typical evaluation consists of assigning higher probability (or lower perplexity) to the grammatical member of each minimal pair.
---
# Dataset Structure
The repository contains one YAML configuration per linguistic phenomenon.
## Macro-phenomena
The benchmark covers four major linguistic domains.
| Macro-phenomenon | Number of phenomena |
|------------------|--------------------:|
| Agreement & Inflection | 31 |
| Verbal Class & Argument Structure | 10 |
| Pronouns | 25 |
| Non-local Dependencies | 64 |
Overall the benchmark contains **130 phenomena**.
Some phenomena originate from the original BLiMP benchmark, while others are adapted from the COnVERSA battery or specifically developed for Italian.
---
# Phenomena
## Agreement & Inflection
### Original BLiMP
- DP agreement
- `blimp_it_original_agreement_and_inflection_dp`
### COnVERSA
- Determiner–noun agreement
- `conversa_a_agreement_dp`
- `conversa_a_agreement_in_dp`
- Subject–verb agreement
- `conversa_a_agreement_subject_verb_trans`
- `conversa_a_agreement_subject_verb_unacc`
- `conversa_a_agreement_subject_verb_unerg`
- `conversa_a_agreement_subject_verb_unerg_trans`
- `conversa_a_agreement_subject_verb_attraction`
- `conversa_a_agreement_subject_verb_cumulative`
- `conversa_a_agreement_verb_subject_unacc`
- Predicate agreement
- `conversa_a_agreement_subject_nominal_predicate`
- `conversa_a_agreement_subject_nominal_predicate_attraction`
- Past participle agreement
- `conversa_a_agreement_past_particple_pre_v_cl`
- `conversa_a_agreement_past_particple_unacc`
- `conversa_a_past_particple_pre_v_cl`
- `conversa_a_past_particple_unacc`
- Psych verbs
- `conversa_a_agreement_psych_verbs_piacere`
- `conversa_a_agreement_psych_verbs_preoccupare`
- `conversa_a_psych_verbs_piacere`
- `conversa_a_psych_verbs_preoccupare`
---
## Verbal Class & Argument Structure
### COnVERSA
- Theta-role assignment
- `conversa_b_theta_roles`
- `conversa_b_argument_structure_theta_roles`
- `conversa_b_argument_structure_b_theta_roles`
- Auxiliary selection
- `conversa_b_auxiliary_selection_transitives`
- `conversa_b_auxiliary_selection_unaccusatives`
- `conversa_b_auxiliary_selection_unergatives`
- `conversa_b_auxiliary_selection_ditranstitives`
- `conversa_b_auxiliary_selection_passive_active_diathesis`
- Argument structure variants
- `conversa_b_argument_structure_b_auxiliary_selection_transitives`
- `conversa_b_argument_structure_b_auxiliary_selection_unaccusatives`
- `conversa_b_argument_structure_b_auxiliary_selection_unergatives`
- `conversa_b_argument_structure_b_auxiliary_selection_ditranstitives`
- `conversa_b_argument_structure_b_auxiliary_selection_passive_active_diathesis`
---
## Pronouns
### COnVERSA
- Personal pronouns
- `conversa_c_pronouns_1_2_person_answers`
- `conversa_c_pronouns_1_2_person_elicited_declaratives`
- Clitics
- `conversa_c_pronouns_clitics_answering_with_acc_cl`
- `conversa_c_pronouns_clitics_coordinating_with_acc_cl`
- `conversa_c_pronouns_clitics_coordinating_with_dat_cl`
- Reflexives
- `conversa_c_pronouns_reflexives_other`
- `conversa_c_pronouns_reflexives_psych_verbs`
- `conversa_c_pronouns_reflexives_unacc`
---
## Non-local Dependencies
### COnVERSA
- Yes/no questions
- `conversa_d_answering_yes_no_questions`
- Why questions
- `conversa_d_answering_why_questions`
- WH-questions
- `conversa_d_answering_wh_adjunct_questions`
- `conversa_d_answering_wh_argument_questions`
- `conversa_d_answering_wh_argument_questions_number_disambiguation`
- `conversa_d_answering_questions_with_rc_subj`
- `conversa_d_answering_questions_with_rc_obj`
- `conversa_d_question_formation_subject_position`
### Original BLiMP
- Relative clauses
- `subject relatives`
- `object relatives`
- `gap vs no-gap conditions`
- WH extraction
- `root extraction`
- `embedded extraction`
- `two-level embedded extraction`
- `clitic fillers`
- `NP fillers`
- `demonstrative fillers`
- Across-the-board movement
- `affirmative`
- `interrogative`
- `relative clause`
- `gap/no-gap manipulations`
- Islands
- `adjunct island`
- `complex NP island`
- `sentential subject island`
- `WH island`
- `left branch island`
- `coordinate structure constraint`
- Parasitic gaps
- `adjunct island variants`
---
# Data Fields
Each dataset configuration consists of sentence pairs containing:
- `sentence_good`
- `sentence_bad`
- grammaticality label
- linguistic phenomenon identifier
- minimal-pair metadata
---
# Data Creation
## Source
BLiMP-IT combines:
- manually designed minimal pairs
- automatic lexical generation using grammar templates
- manually annotated Italian lexicon
- human validation
The lexicon was derived from a 2.4M-token corpus of Italian child-directed and naturalistic language, annotated with Universal POS tags, morphological features, and animacy information. Automatic generation produces lexical variants while preserving the targeted morphosyntactic contrast.
---
# Dataset Characteristics
The benchmark follows two design principles:
1. **Minimality of contrasts**
Each grammatical and ungrammatical sentence differs only in the manipulation responsible for (un)grammaticality.
2. **Linguistically meaningful errors**
Ungrammatical sentences contain theoretically motivated morphosyntactic violations rather than random perturbations or word permutations.
---
# Intended Uses
BLiMP-IT is intended for
- evaluating Italian language models
- probing syntactic generalization
- comparing language models
- comparing humans and language models
- psycholinguistic research
- computational linguistics research
---
# Limitations
- The benchmark focuses exclusively on morphosyntax rather than semantics.
- Some generated sentences may be semantically unusual while remaining syntactically well formed.
- Human acceptability judgments currently exist only for subsets overlapping with COnVERSA.
- Automatic lexical generation is still expanding coverage across all phenomena.
---
# Citation
Bressan et al. (2026) [Language models assessment through linguistically motivated contrasts: A benchmark for Italian (BLiMP-IT)](https://doi.org/10.11576/glow-1242). Proceedings of GLOW 47. DOI: 10.11576/glow-1242
```bibtex
@inproceedings{bressan2026blimpit,
title={Language models assessment through linguistically motivated contrasts: A benchmark for Italian (BLiMP-IT)},
author={Bressan, Veronica and Barbini, Matilde and Fusco, Achille and Neri, Sofia and Piccini Bianchessi, Maria Letizia and Rossi, Sarah and Chesi, Cristiano},
booktitle={Proceedings of GLOW 47},
year={2026}
}
```
---
# License
CC BY-SA 4.0