Three people walk on grass adjacent to a river.
Some people are walking to a bridge to cross a river.
Just because people are walking does not mean they are walking to a bridge to cross a river.
exists e1 s1 x1 x2 x3 x4.(on(e1,x2) & to(s1,x4) & n_river(x4) & Theme(s1,x3) & a_adjacent(s1) & (x2 = x3) & n_grass(x2) & Actor(e1,x1) & v_walk(e1) & n_people(x1) & card_eq_3(x1))
exists e1 p1 x1 x2 x3.(Topic(e1,p1) & exists e2 x4.(Theme(e2,x4) & Actor(e2,x1) & v_cross(e2) & n_river(x4)) & to(e1,x3) & n_bridge(x3) & Actor(e1,x2) & v_walk(e1) & n_people(x2) & n_people(x1))