With no explanation, label text_A→text_B with either "not-entailed" or "entailed".
text_A: Sharon 's hard line has worked in tandem with Hamas 's terrorism to ratchet up tensions further and further , which spill over into the Muslim world and serve as a recruiting tool for al - Qaeda in its search for agents willing to hit the United States .
text_B: The ratchetting happened
entailed.