CREATE TABLE table_204_431 (id NUMBER, "yacht" CLOB, "nation" CLOB, "owner" CLOB, "skipper" CLOB, "launch year" NUMBER)

its alan whiteley yacht 's name dehler magic
SELECT (SELECT "yacht" FROM table_204_431 WHERE "owner" = 'alan whiteley') = 'dehler magic'
SELECT (SELECT "yacht" FROM "table_204_431" WHERE "owner" = 'alan whiteley') = 'dehler magic'