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: Naoya Teshigawara:  Well , I 'll play it .
Katsumi Matsunaga: Now , this is the important part . Right after we got to the bottom of the mountain , was there when that happened . And for that , I mean ...
Katsumi Matsunaga: It
Katsumi Matsunaga: happened in the woods outside the inn . I had a discussion with a guy named * click * , we ended up fighting . And then ... And then ...
Katsumi Matsunaga: Next
Katsumi Matsunaga: thing I knew was that he was no longer moving . When I saw more closely , I saw went through him a branch . * click * was dead .
Katsumi Matsunaga: Terrified
Katsumi Matsunaga: , I returned to my room at the inn . It was decided that we would stay one more night . The police came to ask about the thunderbolt and the girl who fell . They asked many questions , but I could not say anything about * click*. I did not sleep that night . I was sure someone was going to find the corpse of * click * and they all would scare . but in the morning , there were no signs that this happened . So I went back and searched the woods myself .
Katsumi Matsunaga: But
Katsumi Matsunaga: ... he was not there . He had vanished without trace . I was so impressed ... I asked the others what had happened to * click*. But they all looked at me like I was crazy . " Who is he ? " They said , " Do n't know anyone by that name . " Said . Even they said they only had nineteen people , not _ twenty _ . That 's when I realized ... The guy I killed , had been the extra student all the time . I know without a doubt that I killed to * click*. Nothing will change that fact . That 's why I decided to come clean here . This is my confession . It 's been two weeks since the trip , and just Me , the only person involved in his death , reminds to * click*. But I have a feeling it 's only a matter of time . That is why , while my memory is still clear , I want to tell you the truth , and how to stop the calamity . Listen : Send the dead where they belong , send the dead to death . this is how you can stop the calamity once it starts .

people