The man is playing a stringed instrument on the ground.
A man plays a string instrument.
He is shown to be playing the instrument.
exists e1 s1 x1 x2 x3.(n_ground(x3) & n_man(x1) & on(e1,x3) & Theme(e1,x2) & Actor(e1,x1) & v_play(e1) & n_instrument(x2) & a_stringed(s1) & Theme(s1,x2))
exists e1 x1 x2 x3.(Theme(e1,x2) & Actor(e1,x1) & v_play(e1) & n_instrument(x2) & of(x2,x3) & n_string(x3) & n_man(x1))