premise: A little boy with a red baseball cap is on a bus with boys with yellow baseball caps on.
hypothesis: There are people watching the bus pass by
explanation_1: If you are watching a bus pass, you are not on the bus.
explanation_2: If people are on a bus they are not watching the bus pass.
explanation_3: The subject is either the little by on a bus or people watching the bus pass.
premise_logic: exists p1 s1 s2 s3 x1 x2 x3.(a_on(s3) & Manner(p1,s3) & exists s4 x4 x5 x6 x7.(on(x1,x4) & with(x4,x5) & with(x5,x6) & n_cap(x6) & of(x6,x7) & n_baseball(x7) & a_yellow(s4) & Theme(s4,x6) & n_boy(x5) & n_bus(x4)) & with(x1,x2) & n_cap(x2) & of(x2,x3) & n_baseball(x3) & a_red(s2) & Theme(s2,x2) & n_boy(x1) & a_little(s1) & Theme(s1,x1))
hypothesis_logic: exists p1 x1 x4 x5.(n_pass(x4) & of(x4,x5) & n_bus(x5) & exists e1 s1 x2 x3.((x1 = x2) & a_by(s1) & Manner(e1,s1) & Theme(e1,x4) & Actor(e1,x3) & v_watch(e1) & (x2 = x3) & n_people(x2)))