Three children playing on rocks near a lake
older man sits alone
Either there are three children, or an old man. The old man is alone, while the children are not.
exists e1 x1 x2 x3 x4.(a_topic(x1) & on(e1,x3) & near(x3,x4) & n_lake(x4) & n_rock(x3) & Actor(e1,x2) & v_play(e1) & (x1 = x2) & n_child(x1) & card_eq_3(x1))
exists e1 s1 s2 x1.(a_alone(s2) & Manner(e1,s2) & Actor(e1,x1) & v_sit(e1) & n_man(x1) & r_more(s1) & a_older(s1) & Theme(s1,x1))