The two rice fields are chosen, namely, Yuki, which is selected from the regions located south and/or east of Kyoto, and Suki, which is selected from the regions located north and/or west of Kyoto.
京都以東以南の地方から選ばれる「悠紀国」と京都以西以北の地方から選ばれる「主基国」の2つが定められる。