CREATE TABLE table_15483 ("Name" CLOB, "Tenure" CLOB, "Courtesy title" CLOB, "Court Rank" CLOB, "revenues" CLOB)

What is the tenure of the person whose courtesy title is yamashiro-no-kami?
SELECT "Tenure" FROM table_15483 WHERE "Courtesy title" = 'yamashiro-no-kami'
SELECT "Tenure" FROM "table_15483" WHERE "Courtesy title" = 'yamashiro-no-kami'