&nicovideo(http://www.nicovideo.jp/watch/sm2191747) &nicovideo(http://www.nicovideo.jp/watch/sm2338696) &nicovideo(http://www.nicovideo.jp/watch/sm1215980) &nicovideo(http://www.nicovideo.jp/watch/sm4728194) &nicovideo(http://www.nicovideo.jp/watch/sm3580247)
