Four people sitting in branches on a tree.
Four people on a tree are sitting on tree branches.
sitting in branches  almost the same as  sitting on tree branches.
exists e1 x1 x2 x3 x4.(a_topic(x1) & on(e1,x4) & n_tree(x4) & in(e1,x3) & n_branch(x3) & Actor(e1,x2) & v_sit(e1) & (x1 = x2) & n_people(x1) & card_eq_4(x1))
exists e1 x1 x2 x3 x4.(on(e1,x3) & n_branch(x3) & of(x3,x4) & n_tree(x4) & Actor(e1,x1) & v_sit(e1) & on(x1,x2) & n_tree(x2) & n_people(x1) & card_eq_4(x1))