premise: A man sits on the edge of a cliff overlooking a deep valley.
hypothesis: A man is not standing.
explanation_1: Since the man sits, he is not standing.
explanation_2: A man who sits is not standing.
explanation_3: A man sits on the edge so he is not standing.
premise_logic: exists e1 e2 s1 x1 x2 x3 x4 x5.(n_edge(x2) & on(e1,x2) & of(x2,x3) & Theme(e2,x5) & Actor(e2,x4) & v_overlook(e2) & n_valley(x5) & a_deep(s1) & Theme(s1,x5) & (x3 = x4) & n_cliff(x3) & Actor(e1,x1) & v_sit(e1) & n_man(x1))
hypothesis_logic: exists x1.(-exists e1.(Actor(e1,x1) & v_stand(e1)) & n_man(x1))