premise: A man speaking or singing into a microphone while playing the piano.
hypothesis: An entertainer is tickling the ivories.
explanation_1: Tickling the ivories implies that the man is playing the piano.
explanation_2: A man is speaking or singing while playing a piano, a piano has ivory keys.
explanation_3: If the man is singing into a microphone and playing a piano, it figures that the man is an entertainer.
premise_logic: exists x5.(n_piano(x5) & (exists x1 x2.(a_topic(x1) & n_speaking(x1) & of(x1,x2) & n_man(x2)) | exists e2 e1 x3 x4.(while(e1,e2) & Theme(e2,x5) & Actor(e2,x3) & v_play(e2) & a_topic(e1) & into(e1,x4) & n_microphone(x4) & Actor(e1,x3) & v_sing(e1) & n_thing(x3))))
hypothesis_logic: exists e1 x1 x2.(n_ivory(x2) & Theme(e1,x2) & Actor(e1,x1) & v_tickle(e1) & n_entertainer(x1))
premise_sim: exists x5.(n_piano(x5) & (exists x1 x2.(of(x1,x2) & n_speaking(x1) & n_man(x2) & a_topic(x1)) | exists e2 e1 x3 x4.(while(e1,e2) & v_sing(e1) & v_play(e2) & n_thing(x3) & n_microphone(x4) & into(e1,x4) & a_topic(e1) & Theme(e2,x5) & Actor(e2,x3) & Actor(e1,x3))))
hypothesis_sim: exists e1 x1 x2.(v_tickle(e1) & n_ivory(x2) & n_entertainer(x1) & Theme(e1,x2) & Actor(e1,x1))