People are rollerskating in a roller rink.
Men are shooting their guns.
Rollerskating in a roller rink is not the same as shooting guns and cannot be done simultaneously, specifically for legal reasons.
exists e1 x1 x2 x3.(in(e1,x2) & n_rink(x2) & of(x2,x3) & n_roller(x3) & Actor(e1,x1) & v_rollerskate(e1) & n_people(x1))
exists e1 x1 x2.(Theme(e1,x2) & Actor(e1,x1) & v_shoot(e1) & n_gun(x2) & of(x2,x1) & n_thing(x1) & n_man(x1))