A boy and a girl playing on the beach.
Two people are enjoying the beach
A boy and a girl are two people and playing usually implies enjoying.
exists e1 s1 x1 x2 x3 x4.(n_beach(x4) & a_topic(s1) & subset_of(x2,s1) & on(e1,x4) & Actor(e1,x3) & v_play(e1) & (x2 = x3) & n_girl(x2) & subset_of(x1,s1) & n_boy(x1))
exists e1 x1 x2.(n_beach(x2) & Theme(e1,x2) & Actor(e1,x1) & v_enjoy(e1) & n_people(x1) & card_eq_2(x1))