"Maybe" is what's wrong with the world today, mental capacity and testicles are required to make a solid decision!
Lots of material there. Come back after you ponder. All in an attempt to force the train conductor into revealing the previously unknown instantaneous velocity of said train. No Maybe
https://www.merriam-webster.com/dictionary/yes https://www.merriam-webster.com/dictionary/no https://www.merriam-webster.com/dictionary/maybe