The boy in black is skateboarding in the air in front of the flowers and a white and blue sign.
A boy with two broken legs enjoying flowers
One cannot have two broken legs and be skateboarding simultaneously.
exists e1 s1 s2 x1 x2 x3 x4 x5 x6 x7.(n_flower(x6) & n_air(x3) & n_boy(x1) & in(e1,x3) & in(x3,x4) & of(x4,x5) & subset_of(x7,x5) & n_sign(x7) & a_blue(s2) & Theme(s2,x7) & a_white(s1) & Theme(s1,x7) & subset_of(x6,x5) & n_front(x4) & Actor(e1,x1) & v_skateboard(e1) & in(x1,x2) & n_black(x2))
exists e1 s1 x1 x2 x3 x4.(a_topic(x1) & with(x1,x2) & Theme(e1,x4) & Actor(e1,x3) & v_enjoy(e1) & n_flower(x4) & (x2 = x3) & n_leg(x2) & a_broken(s1) & Theme(s1,x2) & card_eq_2(x2) & n_boy(x1))