Two people pose for the camera.
Two people are yelling.
Two people can't pose for the camera and yell.
exists e1 x1 x2.(n_camera(x2) & for(e1,x2) & Actor(e1,x1) & v_pose(e1) & n_people(x1) & card_eq_2(x1))
exists e1 x1.(Actor(e1,x1) & v_yell(e1) & n_people(x1) & card_eq_2(x1))