Three children are playing outside and one of them is unhappy.
Kids outside playing.
"Three children are playing outside" can be rephrased as "kids outside playing".
exists e1 s1 s2 x1 x2.(Theme(s2,x2) & a_unhappy(s2) & of(x2,x1) & n_thing(x1) & n_thing(x2) & card_eq_1(x2) & a_outside(s1) & Manner(e1,s1) & Actor(e1,x1) & v_play(e1) & n_child(x1) & card_eq_3(x1))
exists s1 s2 x1 x2.(n_playing(x1) & a_outside(s2) & Theme(s2,x1) & a_.(s1) & Theme(s1,x1) & of(x1,x2) & n_kid(x2) & a_topic(x1))