Two workers in a grassy field.
two workers going to the site
Just because two workers are in a grassy field does not mean they are going to the site.
exists s1 x1 x2.(a_topic(x1) & in(x1,x2) & n_field(x2) & a_grassy(s1) & Theme(s1,x2) & n_worker(x1) & card_eq_2(x1))
exists e1 x1 x2 x3.(n_site(x3) & a_topic(x1) & to(e1,x3) & Actor(e1,x2) & v_go(e1) & (x1 = x2) & n_worker(x1) & card_eq_2(x1))