He is skateboarding.
He is cooking steaks by the pool.
skateboarding is on the move whereas cooking is done standstill
exists e1 x1.(n_male(x1) & Actor(e1,x1) & v_skateboard(e1))
exists p1 x1 x3.(n_pool(x3) & n_male(x1) & exists s1 x2.((x1 = x2) & by(x2,x3) & n_steak(x2) & a_cooking(s1) & Theme(s1,x2)))