premise: A man in a wetsuit surfing.
hypothesis: The surboard the man is on is yellow.
explanation_1: We have no idea what color the surfboard the person is on is yellow or any color
explanation_2: Not all surfboards are yellow
explanation_3: Sentence one does not mention a color at all, let alone yellow.
premise_logic: exists s1 x1 x2.(a_topic(x1) & in(x1,x2) & n_surfing(x2) & a_wetsuit(s1) & Theme(s1,x2) & n_man(x1))
hypothesis_logic: exists p1 s1 x1 x2.(n_man(x2) & n_surboard(x1) & Theme(s1,x1) & a_yellow(s1) & exists x3.(on(x2,x3) & (x1 = x3)))