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: Consider Input: Lucky:  I know you 're smart , Spot , but how do you handle pressure ? Solve this simple word problem in say , thirty seconds .
Spot: Ah - ha , no problem ! Two trains are heading toward each other , _ one _ at twenty - five miles an hour and the other at forty . They 're fifty miles apart and getting closer on the same track , but with no time to throw the switch , they collide , head on . All aboard perish and it 's all my fault !
Lucky: Next .

Output: trains


Input: Consider Input: Eddie Vedder:  Stone wrote a real pretty great melody ... listen to it all the time ... did n't know what to do with it ... people keep saying , ' Do you have one for this ? Do you have something for that ' ... Yeah ... just workin ' on it
Stone Gossard: I had recorded that riff on my little microcassette recorder ... that was probably the first one I went , ' This is _ one _ I really want to concentrate on ' and try to get the band to fall in love with and keep playing every time there was a rehearsal ... just kind of ' What 'd think ? '

Output: riff


Input: Consider Input: Homer:  Wow , I 'll never drink another beer again .
Wiseguy: Beer here .
Homer: I 'll take _ ten _ .


Output: Beer