premise: a man with beard sitting down playing an acoustic guitar.
hypothesis: The bearded man plays a song and sings along.
explanation_1: He could have been playing without singing along.
explanation_2: Just because a man plays a guitar does not mean he sings along.
explanation_3: The bearded man could be guitarist in a band and might not be sings along
premise_logic: exists e2 e1 s1 s2 x1 x2 x3 x4.(a_topic(x1) & for(e1,e2) & Theme(e2,x4) & Actor(e2,x3) & v_play(e2) & n_guitar(x4) & a_acoustic(s2) & Theme(s2,x4) & a_down(s1) & Manner(e1,s1) & Actor(e1,x3) & v_sit(e1) & (x1 = x3) & with(x1,x2) & n_beard(x2) & n_man(x1))
hypothesis_logic: exists e1 s1 s2 x1 x2 x3 x4.(n_man(x1) & a_bearded(s1) & Theme(s1,x1) & a_along(s2) & Manner(e1,s2) & Theme(e1,x2) & Actor(e1,x1) & v_play(e1) & n_sing(x4) & n_song(x3) & subset_of(x4,x2) & subset_of(x3,x2))