premise: A man in a yellow shirt and helmet mountain biking down a dusty path.
hypothesis: A man with headphones is biking.
explanation_1: No way to know the man has headphones just because he is biking.
explanation_2: A man biking down a dusty path doesn't necessarily mean that the man is biking with headphones.
explanation_3: No all bikers wear headphones when biking
premise_logic: exists e1 s1 s2 s3 x1 x2 x3 x4 x5 x6 x7.(a_topic(x1) & a_down(s3) & Manner(e1,s3) & Theme(e1,x7) & Actor(e1,x6) & v_bike(e1) & n_path(x7) & a_dusty(s2) & Theme(s2,x7) & (x1 = x6) & in(x1,x2) & n_mountain(x4) & of(x4,x5) & n_helmet(x5) & n_shirt(x3) & subset_of(x4,x2) & subset_of(x3,x2) & a_yellow(s1) & Theme(s1,x2) & n_man(x1))
hypothesis_logic: exists e1 x1 x2.(Actor(e1,x1) & v_bike(e1) & with(x1,x2) & n_headphone(x2) & n_man(x1))