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README.md
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---
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license: apache-2.0
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---
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# 🕌 SubTask 1: Islamic Inheritance Reasoning (ʿIlm al-Mawārīth)
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[**QIAS 2025**](https://sites.google.com/view/qias2025) invites participants to test and advance the capabilities of Large Language Models (LLMs) in understanding and reasoning within Islamic knowledge.
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---
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This subtask focuses exclusively on issues related to **Islamic inheritance law**, a highly structured and rule-based field grounded in Islamic jurisprudence. Participants must develop systems that can:
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- Comprehend inheritance scenarios
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- Identify eligible and ineligible heirs
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- Apply fixed-share rules (*farāʾiḍ*), residuary shares, and deal with cases involving *ʿawl* (diminution) and *radd* (return)
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- Perform precise calculations and determine final shares
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All questions are **multiple-choice (MCQs)**, with exactly one correct answer, and are classified into three levels of difficulty:
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---
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### 🟢 Beginner Level Example
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**توفي عن أب، و2 أخ شقيق، و1 ابن أخ شقيق، و2 عم شقيق للأب، وأم، و2 بنت، و1 زوجة، ما هو نصيب الأم؟**
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- ☐ الثلث
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- ☐ الربع
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- ☒ السدس
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- ☐ الثمن
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- ☐ النصف
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- ☐ لا شيء
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---
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### 🟠 Intermediate Level Example
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**توفي عن أخ من الأم، وبنت، وزوجة، وأختين من الأم: كم عدد أسهم البنت بعد الرد؟**
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- ☐ سهم واحد
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- ☐ سهمان
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- ☐ ثلاثة أسهم
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- ☐ أربعة أسهم
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- ☒ سبعة أسهم
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- ☐ ثمانية أسهم
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---
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### 🔴 Advanced Level Example
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**توفي عن زوجة وبنتين وأخ شقيق، والتركة 12000 درهم. ما هو النصيب النهائي لكل وارث من التركة؟**
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- ☒ الزوجة: 1500 درهم، البنتان: 8000 درهم، الأخ الشقيق: 2500 درهم
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- ☐ الزوجة: 3000 درهم، البنتان: 8000 درهم، الأخ الشقيق: 1000 درهم
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- ☐ الزوجة: 1500 درهم، البنتان: 6000 درهم، الأخ الشقيق: 4500 درهم
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- ☐ الزوجة: 1500 درهم، البنتان: 8000 درهم، الأخ الشقيق: 3000 درهم
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- ☐ الزوجة: 2000 درهم، البنتان: 7500 درهم، الأخ الشقيق: 2500 درهم
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- ☐ الزوجة: 1000 درهم، البنتان: 8500 درهم، الأخ الشقيق: 2500 درهم
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---
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# 📊 Data Overview – SubTask 1: Islamic Inheritance Reasoning
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## 📂 Dataset Structure
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- **Training set** ≈ 2000 MCQs multiple-choice questions (MCQs)
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- **Validation set**: 1000 MCQs
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- **Test set**: 1000 MCQs (hidden answers, used for final evaluation)
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Each question has **6 answer options (A–F)**, with exactly **one correct answer**.
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Questions are derived from a corpus of **3165 fatwas from IslamWeb** and have been validated by a qualified expert in Islamic inheritance.
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---
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---
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license: apache-2.0
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---
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