A man and three children shopping for a christmas tree.
Three people are looking for a tree to buy.
Three children are three people, and a christmas tree is a type of tree.
exists s1 x1 x2 x3 x4 x5.(a_topic(s1) & subset_of(x2,s1) & for(x2,x4) & n_tree(x4) & of(x4,x5) & n_christmas(x5) & n_shopping(x2) & of(x2,x3) & n_child(x3) & card_eq_3(x2) & subset_of(x1,s1) & n_man(x1))
exists e1 p1 x1 x2 x3.(Topic(e1,p1) & exists e2.(Actor(e2,x1) & v_buy(e2)) & for(e1,x3) & n_tree(x3) & Actor(e1,x2) & v_look(e1) & n_people(x2) & card_eq_3(x2) & n_people(x1) & card_eq_3(x1))