A man and a boy engage in a game of Ping-Pong.
Two people play ping pong.
A man and a boy are two people, and to engage is a game is to play.
exists e1 x1 x2 x3 x4 x5.(ne_geo_ping-pong(x5) & in(e1,x4) & of(x4,x5) & n_game(x4) & Actor(e1,x1) & v_engage(e1) & subset_of(x3,x1) & n_boy(x3) & subset_of(x2,x1) & n_man(x2))
exists e2 e1 x1 x2.(Theme(e2,x2) & Actor(e2,x1) & v_play(e2) & n_pong(x2) & Actor(e1,x2) & v_ping(e1) & n_people(x1) & card_eq_2(x1))