With no explanation, label text_A→text_B with either "not-entailed" or "entailed".
text_A: By the 1990s , Ferrer had left the musical scene and was shining shoes for money when U.S. musician Ry Cooder recruited him to participate in the Buena Vista Social Club album , a hugely popular recording that won a Grammy .
text_B: Grammy is a famous person
not-entailed.