premise: A person on a snowmobile.
hypothesis: A person is skiing.
explanation_1: A person cannot be on a snowmobile and skiing at the same time.
premise_logic: exists x1 x2.(a_topic(x1) & on(x1,x2) & n_snowmobile(x2) & n_person(x1))
hypothesis_logic: exists p1 x1.(exists x2.((x1 = x2) & n_skiing(x2)) & n_person(x1))
premise_sim: exists x1 x2.(on(x1,x2) & n_snowmobile(x2) & n_person(x1) & a_topic(x1))
hypothesis_sim: exists x1.(n_person(x1) & exists x2.(n_skiing(x2) & (x1 = x2)))