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: Professor Richard Lazarus:  I find that nothing 's ever exactly like you expect . There 's always something to surprise you . Between the idea and the reality , between the motion and the act ...
The Doctor: Falls the shadow .
Professor Richard Lazarus: So the mysterious Doctor knows his T.S. Eliot . I 'm impressed
The Doctor: Would n't have thought you 'd have time for poetry , Lazarus , what with you being so busy defying the laws of nature and everything .
Professor Richard Lazarus: You 're right , Doctor . One lifetime 's been too short for me to do everything I 'd like . How much more I 'll get done in two , or three , or four .
The Doctor: It does n't work like that . Some people live more in twenty years than others do in _ eighty _ . It 's not the time that matters , it 's the person .
Professor Richard Lazarus: But if it 's the right person , what a gift that would be .
The Doctor: Or what a curse . Look at what you 've done to yourself .
Professor Richard Lazarus: Who are you to judge me ?

years