premise: A man in a black shirt working on a guitar.
hypothesis: A guy working on his drums.
explanation_1: one man is working on his drums and the other on his guitar
explanation_2: The guy is either working on his drums or on a guitar.
explanation_3: The man cannot be working on a guitar and his drums at the same time.
premise_logic: exists e1 s1 x1 x2 x3 x4.(a_topic(x1) & on(e1,x4) & n_guitar(x4) & Actor(e1,x3) & v_work(e1) & (x1 = x3) & in(x1,x2) & n_shirt(x2) & a_black(s1) & Theme(s1,x2) & n_man(x1))
hypothesis_logic: exists e1 x1 x2 x3.(a_topic(x1) & on(e1,x3) & n_drum(x3) & of(x3,x1) & n_male(x1) & Actor(e1,x2) & v_work(e1) & (x1 = x2) & n_guy(x1))