CREATE TABLE table_51281 ("Name" CLOB, "Short name" CLOB, "City" CLOB, "Region" CLOB, "Girone" CLOB, "Home venue" CLOB)

What region has giuseppe sivori as a home venue?
SELECT "Region" FROM table_51281 WHERE "Home venue" = 'giuseppe sivori'
SELECT "Region" FROM "table_51281" WHERE "Home venue" = 'giuseppe sivori'