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.

[Q]: Penelope Garcia:  Those of you who like a good mystery , please unleash your inner Agatha Christie , 'cause this _ one _ 's a real humdinger .
[A]: mystery


[Q]: Maxwell Smart:  Three months ago we had an open and shut case against Mondebello . Not only would he have gone to the electric chair , but he would have lost his booking franchise besides . Unfortunately , just before the trial , our key witness was murdered .
Ann Ferris: Were you on that case , Mr. Smart ?
Maxwell Smart: No , the Chief bungled that _ one _ himself .
[A]: case


[Q]: Lanie Parish:  I pulled autopsy reports on the Phantom 's alleged victims . Total of _ seven _ ; four in L.A. , three in New York . All seven were killed with a knife .
Kevin Ryan: Any pattern besides the knife ?
Lanie Parish: No . The victims are all over the map . Four men , three women . Different ethnicities and ages . Each of the victims had something removed ; an ear , an eye , a finger .
Kevin Ryan: Why ? What 's the significance of that ?
Lanie Parish: There is none . And because of the randomness , no one was able to connect the murders . Until Phillip Harris , of course .
Javier Esposito: So Phillip was right . A serial killer 's been hunting in L.A. and New York for three years completely under the radar .
[A]:
victims