Four people dressed in identical blue clothes are cleaning the grass.
Four people cleaning grass.
Cleaning the grass rephrases cleaning grass.
exists e2 e1 s1 s2 x1 x2 x3 x4.(n_grass(x4) & Theme(e2,x4) & Actor(e2,x1) & v_clean(e2) & in(e1,x3) & n_clothes(x3) & a_blue(s2) & Theme(s2,x3) & a_identical(s1) & Theme(s1,x3) & Theme(e1,x2) & v_dress(e1) & (x1 = x2) & n_people(x1) & card_eq_4(x1))
exists e1 x1 x2 x3.(a_topic(x1) & Theme(e1,x3) & Actor(e1,x2) & v_clean(e1) & n_grass(x3) & (x1 = x2) & n_people(x1) & card_eq_4(x1))