One girl is standing on the street, and the other is crouching looking at something on the ground.
A girl is waiting for her friend to pick up her coin that she dropped.
A girl looking at something on the ground doesn't mean it is a coin. Also doesn't mean the two girls are friends or that one is waiting on the other.
exists e2 e1 p1 x1 x2 x3 x5.(n_ground(x5) & n_other(x3) & n_street(x2) & exists e3 x4.(at(e3,x4) & on(x4,x5) & n_thing(x4) & Actor(e3,x3) & v_look(e3)) & Topic(e2,p1) & Actor(e2,x3) & v_crouch(e2) & on(e1,x2) & Actor(e1,x1) & v_stand(e1) & n_girl(x1) & card_eq_1(x1))
exists e1 p1 p2 x1 x2 x3 x4.(Topic(e1,p1) & exists e2 s1 x1.(a_up(s1) & Manner(e2,s1) & Theme(e2,x4) & Actor(e2,x1) & v_pick(e2) & n_female(x1)) & Topic(x4,p2) & exists e3.(Actor(e3,x1) & v_drop(e3)) & n_coin(x4) & of(x4,x1) & n_female(x1) & n_female(x1) & for(e1,x3) & n_friend(x3) & of(x3,x1) & Actor(e1,x2) & v_wait(e1) & n_girl(x2) & n_girl(x1))