Given the task definition, example input & output, solve the new input case.
In this task, we ask you to write an answer to a question about when an event happened. Your answer should be a wrong answer. That is, if you are asked about when an event happened, you should answer with a time that the event didn't likely happen. For example, "going to school" usually happens during the day (not at 2 A.M). Even though there exist multiple wrong answers, we only need a single wrong answer. Please try to keep your "answer" as simple as possible. Concise and simple "answer" is preferred over those complex and verbose ones.
Example: Sentence: Jack played basketball after school, after which he was very tired. 
Question: When did Jack play basketball?
Output: 2 AM.
This event likely happened between 3PM to 8PM, definitely not 2AM. So 2 AM is an unlikely option, hence a good answer here.

New input case for you: Sentence: The major organs of the digestive system include the mouth, esophagus, stomach, and small and large in- testines. 
Question: When was the digestive system first mapped?
Output:
last month.