If you were 4 years old and your sister was half your age then she would have been 4/2 = 2 years old. Now if you are 28 years old, she would be 28-26 = 2 years younger than you, so she would be 28-2 = 26 years old.
spam fails_task lang_mismatch pii not_appropriate hate_speech sexual_content quality toxicity humor helpfulness creativity violence