premise: Children playing on a playground.
hypothesis: Children are watching tv.
explanation_1: There usually isn't a tv at a playground.
explanation_2: If you are playing on a playground you cannot also be watching tv.
explanation_3: Children cannot be playing if they are watching tv.
premise_logic: exists e1 x1 x2 x3.(a_topic(x1) & on(e1,x3) & n_playground(x3) & Actor(e1,x2) & v_play(e1) & (x1 = x2) & n_child(x1))
hypothesis_logic: exists e1 x1 x2.(Theme(e1,x2) & Actor(e1,x1) & v_watch(e1) & n_tv(x2) & n_child(x1))