premise: A child is outside flying with a lot of balloons in his hands.
hypothesis: The balloons are not floating.
explanation_1: Sentence 1 does not mention the state of the balloons. Sentence 2 adds the information that the ballons are not floating.
premise_logic: exists e1 s1 x1 x2 x3 x4.(for(s1,e1) & with(e1,x2) & of(x2,x3) & in(x3,x4) & n_hand(x4) & of(x4,x1) & n_male(x1) & n_balloon(x3) & n_lot(x2) & Actor(e1,x1) & v_fly(e1) & Theme(s1,x1) & a_outside(s1) & n_child(x1))
hypothesis_logic: exists x1.(n_balloon(x1) & -exists e1.(Actor(e1,x1) & v_float(e1)))
premise_sim: exists e1 s1 x1 x2 x3 x4.(with(e1,x2) & v_fly(e1) & of(x4,x1) & of(x2,x3) & n_male(x1) & n_lot(x2) & n_hand(x4) & n_child(x1) & n_balloon(x3) & in(x3,x4) & for(s1,e1) & a_outside(s1) & Theme(s1,x1) & Actor(e1,x1))
hypothesis_sim: exists x1.(n_balloon(x1) & all e1.(-v_float(e1) | -Actor(e1,x1)))