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: Consider Input: Kate Beckett:  Do you have a cause of death ?
M.E. Sidney Perlmutter: It was a burn . A burn that penetrated tissue , muscle , and bone , leaving this perfectly cylindrical hole .
Kate Beckett: What kind of burn does that ?
M.E. Sidney Perlmutter: Well , _ one _ created by high levels of infrared radiation . The blood vessels were cauterized by the intense heat .
Kate Beckett: Are you saying ...
Richard Castle: She was killed by a phaser ?
M.E. Sidney Perlmutter: Well , as much as it pains me , Mr. Castle is largely correct . She was killed by a high intensity laserbeam .
Richard Castle: A real sci - fi murder at a sci - fi convention ! This keeps getting better .

Output: burn


Input: Consider Input: Seeley Booth:  You were with the 720 MP Battalion ?
Red Hudmore: Do n't tell me you heard of us .
Temperance Brennan: I have not
Seeley Booth: Bones , the _ 720 _ was the only battle - tested MP battalion in Vietnam . My pops , my grandfather , he served with them back in the ' 50s .
Red Hudmore: Soldiers of the Gauntlet . That 's what they called us .
Seeley Booth: That 's right . Soldiers of the Gauntlet . It was an honor to meet you , sir .

Output: battalion


Input: Consider Input: Richard Castle:  Look at this . These books from Lars ' apartment on " 1001 Arabian Nights " , they all have handwritten notes in them .
Javier Esposito: This one has ... maps drawn in it .
Kevin Ryan: This _ one _ has his theories of where King Solomon is buried .
Richard Castle: These books were his research that he used in conjunction with his skills as a sonar engineer to unearth King Solomon 's tomb .
Kevin Ryan: Yeah , we 're with you on that .
Richard Castle: And find the magical lamp with the genie in it .
Javier Esposito: That 's where you lose us , Castle .


Output: books