With no explanation, label text_A→text_B with either "not-entailed" or "entailed".
text_A: Arabic broadcaster Al-Jazeera has aired a new video in which al-Qaida 's deputy leader , Ayman al-Zawahri , says U.S. plans to reduce the number of troops in Iraq means victory for Islam .
text_B: Ayman al-Zawahri is a person
entailed.