With no explanation, label text_A→text_B with either "not-entailed" or "entailed".
text_A: At last coming upon a Fox , he tried to frighten him also , but the Fox no sooner heard the sound of his voice than he exclaimed , `` I might possibly have been frightened myself , if I had not heard your bray . ``
text_B: Fox is a famous person
not-entailed.