CREATE TABLE table_23386 ("Team & Boat name" CLOB, "Sail no." CLOB, "Flag" CLOB, "Design Firm" CLOB, "Builder" CLOB, "Skipper" CLOB)

Which flag was on the Green Marine's boat?
SELECT "Flag" FROM table_23386 WHERE "Builder" = 'Green Marine'
SELECT "Flag" FROM "table_23386" WHERE "Builder" = 'Green Marine'