Ethan entered the hallway. Chloe entered the hallway. The lettuce is in the red bucket. Chloe exited the hallway. Ethan moved the lettuce to the blue container. Chloe entered the hallway.
Ethan look for the lettuce in the blue container.
 Ethan look for the lettuce to the red_bucket
 Ethan look for the lettuce to the blue_container