A boy in a blue coat hangs his artwork on the wall.
A boy wrote a song.
A boy couldn't hang artwork while he wrote a song.
exists e1 s1 x1 x2 x3 x4.(n_wall(x4) & on(e1,x4) & Theme(e1,x3) & Actor(e1,x1) & v_hang(e1) & n_artwork(x3) & of(x3,x1) & n_male(x1) & in(x1,x2) & n_coat(x2) & a_blue(s1) & Theme(s1,x2) & n_boy(x1))
exists e1 x1 x2.(Theme(e1,x2) & Actor(e1,x1) & v_write(e1) & n_song(x2) & n_boy(x1))