sentences:  The chancellors periodically met together at the "Zhengshi Tang" (政事堂, literally "the Hall of State Matters"), originally physically located within the examination bureau.In 683, when Pei Yan, then the head of the examination bureau, became the head of the legislative bureau, the "Zhengshi Tang" was moved from the examination bureau to the legislative bureau.Later, during Emperor Xuanzong's reign, when Zhang Shuo became chancellor, he changed the name to "Zhongshu Menxia" (中書門下), apparently employing a double entendre, as when the terms were put together, they meant, "within the doors of the "Zhongshu"."