A woman wearing a backpack walks on the sidewalk while a car drives by.
She is wearing white tennis shoes.
Woman walking on the side walk may be wearing tennis shoes or something else.
exists e2 e1 s1 x1 x2 x3 x4 x5 x6.(n_sidewalk(x4) & a_by(s1) & Manner(e2,s1) & while(e2,x5) & n_drive(x5) & of(x5,x6) & n_car(x6) & on(e2,x4) & Actor(e2,x1) & v_walk(e2) & Theme(e1,x3) & Actor(e1,x2) & v_wear(e1) & n_backpack(x3) & (x1 = x2) & n_woman(x1))
exists e1 s1 x1 x2.(Theme(e1,x2) & Actor(e1,x1) & v_wear(e1) & n_shoe(x2) & of(x2,x1) & n_tennis(x1) & a_white(s1) & Theme(s1,x2) & n_female(x1))