Two men holding skateboards and one man skateboarding.
Three men are watching the half pipe competition.
One man is skateboarding, which means that all three are not watching the competition.
exists e1 x1 x2 x3 x4 x5 x6.(a_topic(x1) & Theme(e1,x3) & Actor(e1,x2) & v_hold(e1) & n_skateboarding(x5) & of(x5,x6) & n_man(x6) & card_eq_1(x5) & n_skateboard(x4) & subset_of(x5,x3) & subset_of(x4,x3) & (x1 = x2) & n_man(x1) & card_eq_2(x1))
exists e1 x1 x2 x3 x4.(n_competition(x2) & of(x2,x4) & n_pipe(x4) & of(x2,x3) & n_half(x3) & Theme(e1,x2) & Actor(e1,x1) & v_watch(e1) & n_man(x1) & card_eq_3(x1))