A man is sitting in a chair in the street playing his guitar.
A man is playing on a street corner for tips.
Not everyone who plays a guitar in the street is on a street corner. Playing a guitar does not imply that a man is playing for tips.
exists e2 e1 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 x4.(on(e1,x2) & for(x2,x4) & n_tip(x4) & n_corner(x2) & of(x2,x3) & n_street(x3) & Actor(e1,x1) & v_play(e1) & n_man(x1))