A group of workers in the desert, two with wheel barrels and two just standing around.
There are four workers.
Two workers plus two workers equals four workers.
exists e1 p1 s1 x1 x2 x3 x4 x5 x6 x7 x8 x9.(n_desert(x3) & a_topic(x1) & of(x1,x2) & rel(x2,x4) & with(x4,x5) & a_just(s1) & Manner(e1,s1) & exists s2.(Theme(s2,x9) & a_around(s2)) & Topic(e1,p1) & Actor(e1,x9) & v_stand(e1) & (x5 = x9) & n_thing(x7) & card_eq_2(x7) & n_barrel(x6) & of(x6,x8) & n_wheel(x8) & subset_of(x7,x5) & subset_of(x6,x5) & n_thing(x4) & card_eq_2(x4) & in(x2,x3) & n_worker(x2) & n_group(x1))
exists p1 x1 x2.((x1 = x2) & n_worker(x2) & card_eq_4(x2))