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.

[EX Q]: DC Endeavour Morse:  Strange , there 's a blackboard there . Could you ... ? Each element is assigned a symbol : Typically an abbreviation of its name together with a unique one or two - digit atomic number . Can you write these down as I call then off ? So , 74 gives us Tungsten . _ 17 _ , Chlorine . 18 , Argon . 19 , Potassium . The elements spell out a name .
Chief Superintendent Bright: T.C.A.P Tucap ?
DC Endeavour Morse: No , not quite , sir , but you 're on the right lines .
DC Endeavour Morse: Um
DC Endeavour Morse: , the chemical symbol for Tungsten is n't Tu as you might expect . It 's W from the German Wolframite . And Potassium is n't P as you might expect but K after the Latin Kalium . Taken together they 're Tungsten ...
DC Endeavour Morse: ...
DC Endeavour Morse: Chorine ...
DC Endeavour Morse: ...
DC Endeavour Morse: Argon ...
DC Endeavour Morse: ...
DC Endeavour Morse: and Potassium .
DC Endeavour Morse: W
DC Endeavour Morse: - C - L - A - R - K. Wallace Clark .
Chief Superintendent Bright: Good
Chief Superintendent Bright: grief .
DI Fred Thursday: Derek 's father .
Chief Superintendent Bright: But there 's nothing to say he even knew the vicar .
DC Endeavour Morse: Ivy Clark , sir . Wallace 's wife is buried in the churchyard . The next plot but one to Lady Daphne Sloan . Reverend Monkford performed the service .
PC Jim Strange: Bloody hell , matey . That 's ...
DI Fred Thursday: Elementary .
[EX A]: number

[EX Q]: Kyouichi Kanzaki:  Who knows ? Maybe I am just lonely .
Yoshihiko Kenjou: Come on , will you knock it off already ? Only people with an IQ of 200 or higher are allowed to think about that kind of stuff .
Kyouichi Kanzaki: Yeah ? Well , sorry , mine is only _ 100 _ .
Makoto Kurumizawa: You just have " I Want a Girl " Syndrome .
Kyouichi Kanzaki: " I Want a Girl " Syndrome ?
Makoto Kurumizawa: You just want to hold somebody close all night long , right ? Who else would it be but a girl ? I think about it every night ! Like if I do this , it 'll lead to that ; if I tease her here , she 'll do you know what - that kind of stuff !
Kyouichi Kanzaki: You really think so ?
Makoto Kurumizawa: What , do you think that 's it ?
Kyouichi Kanzaki: Well , I doubt your IQ is anywhere near 200 .
Makoto Kurumizawa: You got that right , mine stops at 30 !
[EX A]: IQ

[EX Q]: Eric Garrett:  Speaking of parties , I 'm having _ one _ and we 'd like to invite you as the official guest of honor .
Sarah Zoltanne: Why ? So you and your little " descendants club " can burn me at the stake and roast marshmallows by the fire ?
[EX A]:
parties