a man in a black hat standing in front of a brick wall and a sign
The man wearing the hat is riding a unicycle.
Standing by a wall is different than riding a unicycle.
exists s1 x1 x2 x3 x4 x5 x6 x7 x8.(a_topic(x1) & in(x1,x2) & in(x2,x4) & of(x4,x5) & subset_of(x8,x5) & n_sign(x8) & subset_of(x6,x5) & n_wall(x6) & of(x6,x7) & n_brick(x7) & n_front(x4) & n_standing(x2) & of(x2,x3) & n_hat(x3) & a_black(s1) & Theme(s1,x2) & n_man(x1))
exists e1 e2 x1 x2 x3 x4.(n_hat(x3) & n_man(x1) & Theme(e2,x4) & Actor(e2,x1) & v_ride(e2) & n_unicycle(x4) & Theme(e1,x3) & Actor(e1,x2) & v_wear(e1) & (x1 = x2))