TASK DEFINITION: In this task, you will be presented with a question in Persian. Based on the knowledge you need to answer the question, classify the question into "math_and_logic", "literature", or "common_knowledge".
PROBLEM: H2O فرمول چیست؟

SOLUTION: common_knowledge

PROBLEM: سال تأسیس سازمان‌های جهانی بهداشت و فائو کدام است؟

SOLUTION: common_knowledge

PROBLEM: ۱/۲ یک مقدار چند درصد نصف آن است؟

SOLUTION:
math_and_logic

