Children and their parents climbing a metal tower.
A group of people are climbing a metal tower.
Children and their parents is the same as a group of people.
exists e1 s1 x1 x2 x3 x4 x5.(a_topic(s1) & subset_of(x2,s1) & Theme(e1,x4) & Actor(e1,x3) & v_climb(e1) & n_tower(x4) & of(x4,x5) & n_metal(x5) & (x2 = x3) & n_parent(x2) & of(x2,x1) & n_thing(x1) & subset_of(x1,s1) & n_child(x1))
exists e1 x1 x2 x3 x4.(Theme(e1,x3) & Actor(e1,x1) & v_climb(e1) & n_tower(x3) & of(x3,x4) & n_metal(x4) & of(x1,x2) & n_people(x2) & n_group(x1))