4 men are having a serious discussion at a desk.
The men are coworkers.
4 men are having a serious discussion at a desk does not indicate that they are coworkers.
exists e1 s1 x1 x2 x3.(Theme(e1,x2) & Actor(e1,x1) & v_have(e1) & at(x2,x3) & n_desk(x3) & n_discussion(x2) & a_serious(s1) & Theme(s1,x2) & n_man(x1) & n_date(x1) & a_date_day_04(x1) & a_date_day_04(x1))
exists p1 x1.(n_man(x1) & exists x2.((x1 = x2) & n_coworker(x2)))