CREATE TABLE table_204_781 (id DECIMAL, "name ( s ) " TEXT, "yard no." DECIMAL, "type  ( as built ) " TEXT, "owner" TEXT, "imo number" DECIMAL, "laid down" TEXT, "launched" TEXT, "delivered/\ commissioned" TEXT, "fate/\ decommissioned" TEXT, "notes" TEXT)

what was the only yacht owned by clapp ?
SELECT "name(s)" FROM table_204_781 WHERE "owner" = 'clapp'
SELECT "name(s)" FROM "table_204_781" WHERE "owner" = 'clapp'