A group of men protesting outside.
A group of men are working on a car.
Protesting and working on a car are different actions.
exists e1 p1 x1 x2 x3.(a_topic(x1) & of(x1,x2) & exists s1.(Theme(s1,x3) & a_outside(s1)) & Topic(e1,p1) & Actor(e1,x3) & v_protest(e1) & (x2 = x3) & n_man(x2) & n_group(x1))
exists e1 x1 x2 x3.(on(e1,x3) & n_car(x3) & Actor(e1,x1) & v_work(e1) & of(x1,x2) & n_man(x2) & n_group(x1))