With no explanation, label text_A→text_B with either "not-entailed" or "entailed".
text_A: The thing to keep in mind is that Sunni Arab nationalists and Baathists and local Sunni radicals are likely to remain far more dangerous to the US in Iraq than al - Qaeda infiltrators , and it would be dangerous to take one 's eyes off the former ball .
text_B: The keeping did not happen
entailed.