Two men with hard hats are talking.
A worker conversing with himself.
A worker indicates a single person, while two men indicates more than one person.
exists e1 s1 x1 x2.(Actor(e1,x1) & v_talk(e1) & with(x1,x2) & n_hat(x2) & a_hard(s1) & Theme(s1,x2) & n_man(x1) & card_eq_2(x1))
exists e1 x1 x2.(a_topic(x1) & with(e1,x1) & n_male(x1) & Actor(e1,x2) & v_converse(e1) & (x1 = x2) & n_worker(x1))