CREATE TABLE table_64202 ("Years covered" TEXT, "All bills sponsored" FLOAT, "All amendments sponsored" FLOAT, "All bills cosponsored" FLOAT, "All amendments cosponsored" FLOAT, "Bills originally cosponsored" FLOAT, "Amendments originally cosponsored" FLOAT)

What is the fewest amendments sponsored associated with 150 bills originally cosponsored and over 247 bills cosponsored?
SELECT MIN("All amendments sponsored") FROM table_64202 WHERE "Bills originally cosponsored" = '150' AND "All bills cosponsored" > '247'
SELECT MIN("All amendments sponsored") FROM "table_64202" WHERE "All bills cosponsored" > '247' AND "Bills originally cosponsored" = '150'