Two workers in a grassy field.
two workers in grass
The first sentence lets us know that the grass the workers are in is located in a field.
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 x1 x2.(a_topic(x1) & in(x1,x2) & n_grass(x2) & n_worker(x1) & card_eq_2(x1))