It creates a temporary file (so it's in your temporary directory). This file is supposed to be deleted when the program terminates, but I've received reports of that not happening.
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たしかにひとつのじだいがおわるのお
ぼくはこのめでみたよ
だけどつぎがじぶんおばんだってことわ
しりたくなかったんだ
It's my turn next.