With no explanation, label text_A→text_B with either "not-entailed" or "entailed".
text_A: One exit poll , conducted by the Kiev Institute of Sociology and the Razumkov Center for Economic and Political Studies , shows Mr.Yushchenko ahead of Ukraine 's Moscow-leaning Prime Minister Viktor Yanukovich by a double-digit margin
text_B: Prime Minister is a geographical/political entity
not-entailed.