Three children in a ball pit.
The people are taking a standardized test in their school classroom.
A ball pit is not generally in a school classroom.
exists x1 x2 x3.(a_topic(x1) & in(x1,x2) & n_pit(x2) & of(x2,x3) & n_ball(x3) & n_child(x1) & card_eq_3(x1))
exists e1 s1 x1 x2 x3 x4.(n_classroom(x3) & of(x3,x4) & n_school(x4) & of(x3,x1) & n_thing(x1) & n_people(x1) & Theme(e1,x2) & Actor(e1,x1) & v_take(e1) & in(x2,x3) & n_test(x2) & a_standardized(s1) & Theme(s1,x2))