Three children and trying to open a gift.
Three boys are trying to open a gift
Not all children are boys.
exists e1 p1 s1 x1 x2.(a_topic(s1) & subset_of(e1,s1) & Topic(e1,p1) & Actor(e1,x2) & v_try(e1) & exists e2 x3.(Theme(e2,x3) & Actor(e2,x2) & v_open(e2) & n_gift(x3)) & n_thing(x2) & subset_of(x1,s1) & n_child(x1) & card_eq_3(x1))
exists e1 p1 x1.(Topic(e1,p1) & Actor(e1,x1) & v_try(e1) & exists e2 x2.(Theme(e2,x2) & Actor(e2,x1) & v_open(e2) & n_gift(x2)) & n_boy(x1) & card_eq_3(x1))