Three men are working on a roof.
The men are replacing shingles.
Working on a roof and replacing shingles do not necessarily happen at the same time or place.
exists e1 x1 x2.(on(e1,x2) & n_roof(x2) & Actor(e1,x1) & v_work(e1) & n_man(x1) & card_eq_3(x1))
exists e1 x1 x2.(n_man(x1) & Theme(e1,x2) & Actor(e1,x1) & v_replace(e1) & n_shingle(x2))