Boy and girl look on a puppy climbs tree
The children are watching the dog run after a cat.
Sentence 1 is missing a cat
exists s1 s2 x1 x2 x3 x4 x5.(ne_nam_boy(x1) & a_topic(s1) & subset_of(x2,s1) & on(x2,x4) & n_tree(x4) & of(x4,x5) & n_climb(x5) & a_puppy(s2) & Theme(s2,x4) & n_look(x2) & of(x2,x3) & n_girl(x3) & subset_of(x1,s1))
exists e1 x1 x2 x3 x4.(n_run(x2) & of(x2,x3) & n_dog(x3) & n_child(x1) & after(e1,x4) & n_cat(x4) & Theme(e1,x2) & Actor(e1,x1) & v_watch(e1))