An average man washes the windows of a building.
A man washes windows.
An average man is a man in general.
exists e1 s1 x1 x2 x3.(n_window(x2) & Theme(e1,x2) & Actor(e1,x1) & v_wash(e1) & of(x2,x3) & n_building(x3) & n_man(x1) & a_average(s1) & Theme(s1,x1))
exists e1 x1 x2.(Theme(e1,x2) & Actor(e1,x1) & v_wash(e1) & n_window(x2) & n_man(x1))