up and down

Two women are on a seesaw in a playground, with one woman on the left side and the other on the right side. The woman on the left side of the seesaw moves up and down, causing the woman on the right side to move in the opposite direction. The woman on the left side is wearing a blue shirt and jeans, and the woman on the right side is wearing a white shirt and shorts. The seesaw is red and has a yellow seat. The playground has a green surface and is surrounded by trees and buildings. The woman on the left side of the seesaw is smiling and laughing. The woman on the right side of the seesaw is a