A man in a red shirt, black overalls and sunglasses plays a guitar.
A man is playing a violin on stage.
the man could be either playing violin or playing a guitar.
exists e1 s1 s2 x1 x2 x3 x4 x5 x6.(Theme(e1,x6) & Actor(e1,x1) & v_play(e1) & n_guitar(x6) & in(x1,x2) & rel(x2,x3) & subset_of(x5,x3) & n_sunglass(x5) & subset_of(x4,x3) & n_overalls(x4) & a_black(s2) & Theme(s2,x4) & n_shirt(x2) & a_red(s1) & Theme(s1,x2) & n_man(x1))
exists e1 x1 x2 x3.(on(e1,x3) & n_stage(x3) & Theme(e1,x2) & Actor(e1,x1) & v_play(e1) & n_violin(x2) & n_man(x1))