four kids are crossing a river by stepping stones
A group of kids are walking across a river.
Four kids refer to four kids.
exists e1 e2 x1 x2 x3.(by(e1,e2) & Theme(e2,x3) & Actor(e2,x1) & v_step(e2) & n_stone(x3) & Theme(e1,x2) & Actor(e1,x1) & v_cross(e1) & n_river(x2) & n_kid(x1) & card_eq_4(x1))
exists e1 x1 x2 x3.(across(e1,x3) & n_river(x3) & Actor(e1,x1) & v_walk(e1) & of(x1,x2) & n_kid(x2) & n_group(x1))