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: Lord Peter Wimsey:  Facts , Bunter , must have facts . When I was a small boy , I always hated facts . Thought they were nasty , hard things , all nobs .
Mervyn Bunter: Yes , my lord . My old mother always used to say ...
Lord Peter Wimsey: Your mother , Bunter ? Oh , I never knew you had _ one _ . I always thought you just sort of came along already - made , so it were . Oh , excuse me . How infernally rude of me . Beg pardon , I 'm sure .
Mervyn Bunter: That 's all right , my lord .
Lord Peter Wimsey: Thank you .
Mervyn Bunter: Yes indeed , I was one of seven .
Lord Peter Wimsey: That is pure invention , Bunter , I know better . You are unique . But you were going to tell me about your mater .
Mervyn Bunter: Oh yes , my lord . My old mother always used to say that facts are like cows . If you stare them in the face hard enough , and they generally run away .
Lord Peter Wimsey: By Jove , that 's courageous , Bunter . What a splendid person she must be .
Mervyn Bunter: I think so , my lord .

mother