Abigail entered the back yard. Logan entered the back yard. The potato is in the blue bathtub. Abigail exited the back yard. Logan moved the potato to the red bucket. Logan exited the back yard. Abigail entered the basement.
The potato at the beginning was in the blue bathtub.
 the potato at the beginning was in the red_bucket
 the potato at the beginning was in the blue_bathtub