M2E2 (text) — label summary
Counts computed from processed_data/m2e2/test.jsonl (6013 records, single test split;
source = text_only_event.json). Scope caveat: this is the text_only subset = 85% of
the paper's 1297 text events (the 192 image-grounded events in text_multimedia are
excluded, matching TextEE). Use as eval-only; absence of an event is not ground truth.
Event types — 8 (1105 event mentions)
| Event type | Count |
|---|---|
| Conflict:Attack | 302 |
| Movement:Transport | 229 |
| Life:Die | 176 |
| Justice:Arrest-Jail | 121 |
| Contact:Meet | 104 |
| Conflict:Demonstrate | 98 |
| Contact:Phone-Write | 43 |
| Transaction:Transfer-Money | 32 |
| Total | 1105 |
Entity types — 8 (21569 entity mentions)
| Entity type | Count |
|---|---|
| geopolitical | 7307 |
| person | 7011 |
| organization | 4602 |
| location | 1321 |
| facility | 716 |
| vehicle | 300 |
| weapon | 279 |
| value | 33 |
| Total | 21569 |
Argument roles — 15 (1659 argument instances)
| Role | Count |
|---|---|
| Place | 384 |
| Entity | 190 |
| Attacker | 166 |
| Target | 152 |
| Artifact | 136 |
| Victim | 133 |
| Destination | 123 |
| Agent | 121 |
| Origin | 78 |
| Person | 72 |
| Instrument | 36 |
| Giver | 23 |
| Recipient | 21 |
| Vehicle | 21 |
| Police | 3 |
| Total | 1659 |
Totals at a glance
| Item | Value |
|---|---|
| Records (sentences) | 6013 |
| — with ≥1 event | 932 |
| — empty (no event) | 5081 |
| Event mentions | 1105 |
| Event types | 8 |
| Argument instances | 1659 |
| Argument roles | 15 |
| Entity mentions | 21569 |
| Entity types | 8 |
Definitions
Source note: the M2E2 paper (Li et al., ACL 2020) does not restate definitions — it
adopts the ACE 2005 annotation guidelines (Walker et al. 2006) and selects the 8 event
types as the complete intersection of ACE and imSitu (the visually depictable subset). The
definitions below paraphrase ACE 2005; the Roles column lists the argument roles that
actually occur for that type in this shipped text_only data (the paper's Table 1
ontology allows a few more, e.g. Instrument on several types; Participant is the
ontology name for what the data labels Entity on Contact:Meet).
Event types
| Event type | Definition (per ACE 2005, as adopted by M2E2) | Roles present in data |
|---|---|---|
| Conflict:Attack | A violent physical act intended to cause physical harm or damage to a target — any attack not covered by a more specific type (shootings, bombings, air strikes, etc.). | Attacker, Target, Place, Instrument |
| Movement:Transport | A person or artifact (vehicle/weapon) is moved from one place (origin) to another (destination). | Artifact, Destination, Origin, Agent, Vehicle |
| Life:Die | The life of a person ends — accidental, intentional, or self-inflicted. | Victim, Place, Agent, Instrument |
| Justice:Arrest-Jail | A person's freedom of movement is restricted by a state actor (police/government) — being arrested or held in custody/jail. | Person, Place, Agent |
| Contact:Meet | Two or more entities come together at a single location and interact face-to-face (talks, summits, visits). | Entity (= ontology "Participant"), Place |
| Conflict:Demonstrate | A large number of people gather in a public place to protest or demand official action (protests, rallies, strikes, riots). | Place, Entity, Police |
| Contact:Phone-Write | Two or more parties communicate not face-to-face — by telephone or written/electronic correspondence. | Entity, Place |
| Transaction:Transfer-Money | Giving, receiving, lending, or borrowing money, not as payment for goods/services. | Giver, Recipient |
Entity types
| Entity type | Definition (per ACE 2005, as adopted by M2E2) | Examples in data |
|---|---|---|
| person (ACE: PER) | A human, whether a single individual or a group of people. | Morsi, supporters, police forces |
| geopolitical (ACE: GPE) | A composite entity of population + government + physical territory: a nation, state, province, county, or city. | U.S., Syrian, Baton Rouge |
| organization (ACE: ORG) | A group of people defined by a formal organizational structure — corporations, agencies, institutions. | police, Nation of Islam, IS |
| location (ACE: LOC) | A geographical/natural place defined by physical features, not a geopolitical (GPE) — regions, land masses, bodies of water. | West African region, Europe, Algerian desert |
| facility (ACE: FAC) | A man-made permanent structure or real-estate improvement — buildings, airports, refineries, jails. | mosque, hospital, jail |
| vehicle (ACE: VEH) | A physical device designed to move/carry people or objects between locations. | car, vessels, flight |
| weapon (ACE: WEA) | A physical device primarily used as an instrument to harm or destroy. | bullets, weapons |
| value (ACE: VALUE) | An ACE non-entity quantity; in this data it is almost entirely monetary amounts and percentages. | $210 million, 51 percent stake, $1 billion |