Two children are climbing a rock wall while two others look on.
Two sad children are climbing a rock wall while two others look on.
There is no implication that the two children climbing the wall were sad.
exists e2 e1 x1 x2 x3 x4 x5 x6.(on(e2,x6) & n_thing(x6) & Actor(e2,x1) & v_look(e2) & while(e1,x5) & -(x5 = x1) & n_person(x1) & n_person(x5) & card_eq_2(x5) & Theme(e1,x3) & Actor(e1,x2) & v_climb(e1) & n_wall(x3) & of(x3,x4) & n_rock(x4) & (x1 = x2) & n_child(x1) & card_eq_2(x1))
exists e2 e1 s1 x1 x2 x3 x4 x5 x6.(on(e2,x6) & n_thing(x6) & Actor(e2,x1) & v_look(e2) & while(e1,x5) & -(x5 = x1) & n_person(x1) & n_person(x5) & card_eq_2(x5) & Theme(e1,x3) & Actor(e1,x2) & v_climb(e1) & n_wall(x3) & of(x3,x4) & n_rock(x4) & (x1 = x2) & n_child(x1) & a_sad(s1) & Theme(s1,x1) & card_eq_2(x1))