A man is working with fire and tar to repair a roof.
A man at work.
Repair a roof implies work.
exists e1 p1 x1 x2 x3 x4 x5.(Topic(e1,p1) & exists e2 x6.(Theme(e2,x6) & Actor(e2,x1) & v_repair(e2) & n_roof(x6)) & with(e1,x3) & n_tar(x5) & n_fire(x4) & subset_of(x5,x3) & subset_of(x4,x3) & Actor(e1,x2) & v_work(e1) & n_man(x2) & n_man(x1))
exists x1 x2.(a_topic(x1) & at(x1,x2) & n_work(x2) & n_man(x1))