premise: A guy on a log.
hypothesis: A guy on nothing.
explanation_1: A log is not nothing.
premise_logic: exists x1 x2.(a_topic(x1) & on(x1,x2) & n_log(x2) & n_guy(x1))
hypothesis_logic: exists x1.(-exists x2.(a_topic(x1) & on(x1,x2) & n_thing(x2)) & n_guy(x1))
premise_sim: exists x1 x2.(on(x1,x2) & n_log(x2) & n_guy(x1) & a_topic(x1))
hypothesis_sim: exists x1.(n_guy(x1) & all x2.(-on(x1,x2) | -n_thing(x2) | -a_topic(x1)))