Definition: 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 _. Your answer should be chosen from the given text, and should not contain other words.
Input: 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 .

Lucifer