Three men are working on a roof.
The workers are repairing the home.
Working on a roof is a way of repairing a home.
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_home(x2) & n_worker(x1) & Theme(e1,x2) & Actor(e1,x1) & v_repair(e1))