Question 1: The term remained in some use even up to the ________, but its frequency decreased
drastically after the appearance of the hon-dō in the Heian period[3].
Question 2: The Butsuden or Butsu-dō(仏殿・仏堂
?), literally "Buddha Hall", is the main
hall of a temple of one of the three ________ schools (Sōtō曹洞, Rinzai臨済, and Obaku黃檗)[3].