A young man in a green t-shirt strums his guitar while sitting cross-legged on the floor.
The young man plays the piano
the boy plays the piano so he cannot play the guitar at the same time.
exists e1 e2 p1 s1 s2 x1 x2 x3 x4.(n_floor(x4) & while(e1,e2) & on(e2,x4) & exists s3.(Theme(s3,x1) & a_cross-legged(s3)) & Topic(e2,p1) & Actor(e2,x1) & v_sit(e2) & Theme(e1,x3) & Actor(e1,x1) & v_strum(e1) & n_guitar(x3) & of(x3,x1) & n_male(x1) & in(x1,x2) & n_t-shirt(x2) & a_green(s2) & Theme(s2,x2) & n_man(x1) & a_young(s1) & Theme(s1,x1))
exists e1 s1 x1 x2.(n_piano(x2) & n_man(x1) & a_young(s1) & Theme(s1,x1) & Theme(e1,x2) & Actor(e1,x1) & v_play(e1))