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.

Columbo:  Well , you 've got some family , Miss Lytton . Everybody thinks I 'm getting ready to arrest them .
Ruth Lytton: Everybody but me .
Columbo: Yes . It 's a relief talking to you . I was beginning to feel like a policeman .
Ruth Lytton: You ARE a policeman - and a good _ one _ . You say a thing when you 're ready to say it and not before .
policeman

Jackson Spears:  You hate me , do n't you ?
Tess: No , hate has caused a lot of problems in this world , but it 's never solved _ one _ yet .
problems

Castiel:  It 's Enokian . I believe it 's some sort of riddle . Why is six afraid of seven ? Now ... I assume it 's because ... seven is a prime number . And prime numbers can be intimidating .
Sam Winchester: It 's because seven ate _ nine _ .
Castiel: It 's word play . And the answer is the key like the Doors of Durin in Lord of the Rings .
Sam Winchester: Wait a second . You know about The Lord of the Rings ?
Castiel: I 'm very pop culture savvy now .

number