premise: The boy in pajama pants jumps off the sofa.
hypothesis: The boy is bouncing on the sofa
explanation_1: A boy jumping off the the sofa is different from bouncing "on" the sofa.
explanation_2: He may be jumping not bouncing
explanation_3: If someone is jumping off the sofa, it doesn't imply that they are bouncing on the sofa.
premise_logic: exists e1 s1 x1 x2 x3 x4.(n_sofa(x4) & n_boy(x1) & a_off(s1) & Manner(e1,s1) & Theme(e1,x4) & Actor(e1,x1) & v_jump(e1) & in(x1,x2) & n_pants(x2) & of(x2,x3) & n_pajama(x3))
hypothesis_logic: exists e1 x1 x2.(n_sofa(x2) & n_boy(x1) & on(e1,x2) & Actor(e1,x1) & v_bounce(e1))