premise: A man in yellow, white, and blue bicycle clothing and helmet grimaces as he rides his bicycle.
hypothesis: A girl is riding a roller coaster.
explanation_1: The man can't be a girl.
explanation_2: The subject is either a man or a girl and a person who rides his bicycle cannot be riding a roller coaster.
explanation_3: A bicycle has tires, A coaster runs on rails
premise_logic: exists e1 s1 s2 s3 s4 s5 x1 x2 x3 x4 x5 x6.(Theme(e1,x5) & Actor(e1,x1) & v_ride(e1) & n_bicycle(x5) & n_bicycle(x5) & of(x5,x1) & n_male(x1) & n_male(x1) & in(x1,x2) & as(x2,x1) & n_grimace(x4) & of(x4,x6) & n_helmet(x6) & n_clothing(x3) & of(x3,x5) & subset_of(x4,x2) & subset_of(x3,x2) & a_blue(s5) & Theme(s5,x2) & a_,(s4) & Theme(s4,x2) & a_white(s3) & Theme(s3,x2) & a_,(s2) & Theme(s2,x2) & a_yellow(s1) & Theme(s1,x2) & n_man(x1))
hypothesis_logic: exists e1 x1 x2 x3.(Theme(e1,x2) & Actor(e1,x1) & v_ride(e1) & n_coaster(x2) & of(x2,x3) & n_roller(x3) & n_girl(x1))