A man in a wheelchair plays his guitar on a sidewalk.
A man sitting in a wheelchair is playing the guitar.
man plays his guitar is same as man playing the guitar
exists e1 x1 x2 x3 x4.(on(e1,x4) & n_sidewalk(x4) & Theme(e1,x3) & Actor(e1,x1) & v_play(e1) & n_guitar(x3) & of(x3,x1) & n_male(x1) & in(x1,x2) & n_wheelchair(x2) & n_man(x1))
exists e1 e2 x1 x2 x3 x4.(n_guitar(x4) & Theme(e2,x4) & Actor(e2,x1) & v_play(e2) & in(e1,x3) & n_wheelchair(x3) & Actor(e1,x2) & v_sit(e1) & (x1 = x2) & n_man(x1))