With no explanation, label text_A→text_B with either "not-entailed" or "entailed".
text_A: Mahmoud Ahmadinejad Several Americans held hostage in Iran more than 25 years ago say they remember Iran 's President-elect Mahmoud Ahmadinejad as playing a key role in the seizure .
text_B: Mahmoud is a natural entity
not-entailed.