A bow does a trick on his skateboard at a skate park.
Nobody is skateboarding at the skate park right now.
If the body is at a skate park, it means that it isn't true that nobody is at the skate park.
exists e1 x1 x2 x3 x4 x5.(at(e1,x4) & n_park(x4) & of(x4,x5) & n_skate(x5) & on(e1,x3) & n_skateboard(x3) & of(x3,x1) & n_male(x1) & Theme(e1,x2) & Actor(e1,x1) & v_do(e1) & n_trick(x2) & n_bow(x1))
exists x2 x3.(n_park(x2) & of(x2,x3) & n_skate(x3) & -exists e1 s1 x1.(r_right(e1) & a_now(s1) & Manner(e1,s1) & at(e1,x2) & Actor(e1,x1) & v_skateboard(e1) & n_person(x1)))