He is smoking looking at the person.
A man is smoking.
'He' implies a man, who is smoking.
exists e1 p1 x1 x2.(n_person(x2) & n_male(x1) & exists e2.(at(e2,x2) & Actor(e2,x1) & v_look(e2)) & Topic(e1,p1) & Actor(e1,x1) & v_smoke(e1))
exists p1 x1.(exists x2.((x1 = x2) & n_smoking(x2)) & n_man(x1))