premise: Man sitting playing guitar.
hypothesis: A man is sitting by a campfire, playing guitar and singing.
explanation_1: The man can play guitar without sitting by a campfire.
explanation_2: Just because a man is sitting playing a guitar it does not mean the man is by a campfire or singing.
explanation_3: Just because a man is sitting does not mean he is sitting by a campfire. And you can be playing guitar and not be singing.
premise_logic: exists e1 s1 x1 x2 x3.(n_guitar(x1) & a_.(s1) & Theme(s1,x1) & of(x1,x3) & n_playing(x3) & Actor(e1,x1) & v_sit(e1) & of(x1,x2) & n_man(x2) & a_topic(x1))
hypothesis_logic: exists e2 e1 x1 x2 x3 x4 x5.(by(e1,x2) & rel(x2,x3) & n_singing(x5) & n_guitar(x4) & subset_of(x5,x3) & subset_of(x4,x3) & Actor(e2,x3) & v_play(e2) & n_campfire(x2) & Actor(e1,x1) & v_sit(e1) & n_man(x1))