A man and a woman repairing a bicycle tire.
The man and woman are walking their dog.
One cannot be walking a dog and repairing a tire at the same time.
exists e1 s1 x1 x2 x3 x4 x5.(a_topic(s1) & subset_of(x2,s1) & Theme(e1,x4) & Actor(e1,x3) & v_repair(e1) & n_tire(x4) & of(x4,x5) & n_bicycle(x5) & (x2 = x3) & n_woman(x2) & subset_of(x1,s1) & n_man(x1))
exists e1 x1 x2 x3 x4.(n_dog(x4) & of(x4,x2) & n_thing(x2) & n_woman(x3) & n_man(x2) & subset_of(x3,x1) & subset_of(x2,x1) & Theme(e1,x4) & Actor(e1,x1) & v_walk(e1))