A man is sitting in a chair in the street playing his guitar.
A man is banging a tambourine on stage.
A man cannot be on banging a tambourine if playing his guitar
exists e1 e2 x1 x2 x3 x4.(n_guitar(x4) & of(x4,x3) & n_male(x3) & n_street(x3) & for(e1,e2) & Theme(e2,x4) & Actor(e2,x1) & v_play(e2) & in(e1,x3) & in(e1,x2) & n_chair(x2) & Actor(e1,x1) & v_sit(e1) & n_man(x1))
exists e1 x1 x2 x3.(on(e1,x3) & n_stage(x3) & Theme(e1,x2) & Actor(e1,x1) & v_bang(e1) & n_tambourine(x2) & n_man(x1))