Given the task definition and input, reply with output. In this task, you will use your knowledge about language (and common sense) to determine what element the marked number refers to. The numbers are marked with two underlines around them, like: _ number _. There are several possible answers, you'll need to choose the proper one. Carefully read the given text, pay special attention to the marked number, think about what (unwritten) information the marked number holds inside, choose the most adequate word(s) from the optional answers. If none of them seems right to you, there's also an option for other. If your answer is "REFERENCE", also write the reference entity, otherwise write the implicit option name. Options to choose from are:
REFERENCE: Some object which is being mentioned in the text before or after the target number. The reference answer has a higher priority than any other. If both Reference and another answer are possible, prioritize the Reference.
YEAR: Describing a calendric year
AGE: Describing someone's age
CURRENCY: Reference to some monetary value e.g dollar, euro etc.
PEOPLE: Describing a single/plural persons
TIME: Describing a time of the day. Usually you can add the word o'clock after those numbers.
OTHER: Some other option, which isn't listed here.

Dr. Spencer Reid: Guys , I think these numbers are dates . If you reverse them and chop off the 11 at the beginning and end ...
Aaron Hotchner: That 's two days after each woman went missing .
Dr. Spencer Reid: It 's more than that , though . Look . March 1st is Saint Eichatadt day . March 21st is the spring equinox , and the 24th is the Feast of the Beast . All important holidays in the Satanic calendar for sacrifices .
Derek Morgan: What about the 11 on the end ?
Dr. Spencer Reid: To many occultists _ 11 _ is symbolic of Lucifer .
Jennifer Jareau: Okay , I thought we were moving away from Satanic killings .
Aaron Hotchner: Apparently we need to reconsider .
Dr. Spencer Reid: There 's got ta be some sort of connection to the Devil here .
Aaron Hotchner: Reid , what other upcoming dates are significant to Satanists ?
Dr. Spencer Reid: Good Friday , then Easter eve . Then preparations begin in mid - April for the most important holiday of all , Walpurgis Night on April 30th .
REFERENCE Lucifer