A father and his two young children watch seagulls on the beach.
The children played on the beach.
To watch seagulls on the beach is the way the children played.
exists e1 s1 x1 x2 x3 x4 x5.(n_beach(x5) & on(e1,x5) & Theme(e1,x4) & Actor(e1,x1) & v_watch(e1) & n_seagull(x4) & subset_of(x3,x1) & n_child(x3) & a_young(s1) & Theme(s1,x3) & card_eq_2(x3) & of(x3,x2) & n_male(x2) & subset_of(x2,x1) & n_father(x2))
exists e1 x1 x2.(n_beach(x2) & n_child(x1) & on(e1,x2) & Actor(e1,x1) & v_play(e1))