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Shota Itagaki
Graduate School of Information Sciences, Tohoku University
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Akinobu Ando
Faculty of Education, Miyagi University of Education
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Takuya Kato
Ogawara Municipal Ogawara Elementary School
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Ryota Fukutani
Graduate School of Information Sciences, Tohoku University
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Tatsuya Horita
Graduate School of Information Sciences, Tohoku University