A girl jumps rope on a sidewalk.
A person is exercising in front of her house.
Just because a girl jumps rope does not mean that she is exercising and it does not mean that she is in front of her house.
exists e1 x1 x2 x3.(on(e1,x3) & n_sidewalk(x3) & Theme(e1,x2) & Actor(e1,x1) & v_jump(e1) & n_rope(x2) & n_girl(x1))
exists e1 x1 x2 x3.(in(e1,x2) & of(x2,x3) & n_house(x3) & of(x3,x1) & n_female(x1) & n_front(x2) & Actor(e1,x1) & v_exercise(e1) & n_person(x1))