Three children watching the men working outside from the window.
The children are watching the men work.
Working is the progressive present conjugation of work.
exists e1 e2 s1 x1 x2 x3 x4.(n_window(x4) & n_man(x2) & Theme(e2,x2) & Actor(e2,x1) & v_watch(e2) & from(e1,x4) & a_outside(s1) & Manner(e1,s1) & Actor(e1,x3) & v_work(e1) & (x2 = x3) & n_child(x1) & card_eq_3(x1))
exists e1 x1 x2 x3.(n_work(x2) & of(x2,x3) & n_man(x3) & n_child(x1) & Theme(e1,x2) & Actor(e1,x1) & v_watch(e1))