Two girls pet a small kangaroo in a grassy field.
There are people with an animal.
Two girls are defined as people and a kangaroo is an animal and you would be with an animal to pet it.
exists s1 s2 s3 x1 x2 x3 x4.(a_topic(x1) & Theme(s3,x3) & Actor(s3,x2) & a_pet(s3) & in(x3,x4) & n_field(x4) & a_grassy(s2) & Theme(s2,x4) & n_kangaroo(x3) & a_small(s1) & Theme(s1,x3) & (x1 = x2) & n_girl(x1) & card_eq_2(x1))
exists p1 x1 x2 x3.((x1 = x2) & with(x2,x3) & n_animal(x3) & n_people(x2))