Two young boys play with a puzzle in a classroom.
Two friends are playing a puzzle at home
The friends in the second sentence are playing with a puzzle, and they must be the young boys from the first sentence.
exists e1 s1 x1 x2 x3.(in(e1,x3) & n_classroom(x3) & with(e1,x2) & n_puzzle(x2) & Actor(e1,x1) & v_play(e1) & n_boy(x1) & a_young(s1) & Theme(s1,x1) & card_eq_2(x1))
exists e1 x1 x2 x3.(at(e1,x3) & n_home(x3) & Theme(e1,x2) & Actor(e1,x1) & v_play(e1) & n_puzzle(x2) & n_friend(x1) & card_eq_2(x1))