Two men holding skateboards and one man skateboarding.
Men are skateboarding at a park with multiple half-pipes.
A man skateboarding does not imply being at a park with multiple half pipes.
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 s1 x1 x2 x3.(at(e1,x2) & with(x2,x3) & n_half-pipe(x3) & a_multiple(s1) & Theme(s1,x3) & n_park(x2) & Actor(e1,x1) & v_skateboard(e1) & n_man(x1))