A group of people eat a meal in a crowded outdoor location.
A group of people are surfing.
People cannot eat a meal and be surfing at the same time.
exists e1 s1 x1 x2 x3 x4 x5.(in(e1,x4) & n_location(x4) & of(x4,x5) & n_outdoor(x5) & a_crowded(s1) & Theme(s1,x4) & Theme(e1,x3) & Actor(e1,x1) & v_eat(e1) & n_meal(x3) & of(x1,x2) & n_people(x2) & n_group(x1))
exists e1 x1 x2.(Actor(e1,x1) & v_surf(e1) & of(x1,x2) & n_people(x2) & n_group(x1))