a 1st wall.a 10.7 feet tall woman is behind the 1st wall.a 2nd 5 feet tall wall is 3 feet in front of the 1st wall.a 6.7 feet tall woman is behind the 2nd wall.a 3rd 2.5 feet tall wall is 3 feet in front of the 2nd wall.a 3.5 feet tall woman is behind the 3rd wall.clear ground.