With no explanation, label text_A→text_B with either "not-entailed" or "entailed".
text_A: Mr. Bolton is visiting Tokyo to observe multinational exercises , held under the U.S.-led Proliferation Security Initiative , aimed at training troops from several countries to intercept weapons of mass destruction at sea .
text_B: U.S.-led Proliferation Security Initiative is a day of the week
not-entailed.