premise: A man wakeboarding
hypothesis: the person is skateboarding
explanation_1: A person can not be wakeboarding and skateboarding at the same time.
premise_logic: exists e1 x1 x2.(a_topic(x1) & Actor(e1,x2) & v_wakeboard(e1) & (x1 = x2) & n_man(x1))
hypothesis_logic: exists e1 x1.(n_person(x1) & Actor(e1,x1) & v_skateboard(e1))
premise_sim: exists e1 x1 x2.(v_wakeboard(e1) & n_man(x1) & a_topic(x1) & Actor(e1,x2) & (x1 = x2))
hypothesis_sim: exists e1 x1.(v_skateboard(e1) & n_person(x1) & Actor(e1,x1))