premise: A dark-skinned man wearing a green cap backwards on his head grins in a crowd.
hypothesis: The man in the green cap finds something funny.
explanation_1: A man grins results when the man finds something funny.
explanation_2: If the man grins then something is funny.
explanation_3: A man is a man. By wearing a green cap he is in the green cap. If he grins, it suggests he finds something funny.
premise_logic: exists e1 s1 s2 x1 x2 x3 x4 x5 x6 x7.(a_topic(x1) & Theme(e1,x3) & Actor(e1,x2) & v_wear(e1) & on(x3,x5) & in(x5,x7) & n_crowd(x7) & n_grin(x5) & of(x5,x6) & n_head(x6) & of(x5,x1) & n_male(x1) & n_backward(x3) & of(x3,x4) & n_cap(x4) & a_green(s2) & Theme(s2,x3) & (x1 = x2) & n_man(x1) & a_dark-skinned(s1) & Theme(s1,x1))
hypothesis_logic: exists e1 s1 s2 x1 x2 x3 x4.(n_cap(x2) & a_green(s1) & Theme(s1,x2) & n_man(x1) & Theme(e1,x3) & Actor(e1,x1) & v_find(e1) & Theme(s2,x4) & a_funny(s2) & (x3 = x4) & n_thing(x3) & in(x1,x2))