With no explanation, label text_A→text_B with either "not-entailed" or "entailed".
text_A: Ambassador Greg Schulte told VOA 's Persian service Tuesday that in recent talks about the Iranian nuclear standoff , U.S. , European , Russian and Chinese envoys have discussed gradually increasing diplomatic pressure on Tehran if it fails to suspend its uranium enrichment activities .
text_B: VOA is a calendar year
not-entailed.