A boy is balancing a plate of pastries on his head while another boy sits next to him on a rail.
A boy is happily balancing a plate.
Not everyone balancing a plate on their head are doing it happily.
exists e1 p1 x1 x2 x3 x4.(exists e2 x5 x6.(on(e2,x6) & n_rail(x6) & to(e2,x1) & r_next(e2) & Actor(e2,x5) & v_sit(e2) & n_boy(x5) & -(x5 = x1)) & n_male(x1) & n_male(x1) & n_boy(x1) & n_boy(x1) & while(e1,p1) & Theme(e1,x2) & Actor(e1,x1) & v_balance(e1) & of(x2,x3) & on(x3,x4) & n_head(x4) & of(x4,x1) & n_pastry(x3) & n_plate(x2))
exists e1 s1 x1 x2.(a_happily(s1) & Manner(e1,s1) & Theme(e1,x2) & Actor(e1,x1) & v_balance(e1) & n_plate(x2) & n_boy(x1))