Table: naitou_masamitsu
Columns: name
tenure
courtesy_title
court_rank
revenues

Question: What is the tenure of the person whose courtesy title is yamashiro-no-kami?
SQL: SELECT "tenure" FROM naitou_masamitsu WHERE "courtesy_title" = 'yamashiro-no-kami'

Question: What is the courtesy title of the person whose tenure goes from 1766–1794?
SQL: SELECT "courtesy_title" FROM naitou_masamitsu WHERE "tenure" = '1766–1794'