premise: the man is in the middle of a pole vault
hypothesis: The man is concentrating.
explanation_1: A man in the middle of a pole vault is not necessarily concentrating.
explanation_2: The fact that a man is in the middle of a pole vault doesn't imply that he is concentrating.
explanation_3: We have no idea if he is concentrating or not, he could be not thinking at all.
premise_logic: exists p1 x1 x2.(n_middle(x2) & n_man(x1) & exists x3 x4.(in(x1,x2) & of(x2,x3) & n_vault(x3) & of(x3,x4) & n_pole(x4)))
hypothesis_logic: exists e1 x1.(n_man(x1) & Actor(e1,x1) & v_concentrate(e1))