CREATE TABLE table_203_774 (id DECIMAL, "name" TEXT, "dates" TEXT, "grt" DECIMAL, "propulsion" TEXT, "port" TEXT, "notes" TEXT)

which is the only ship used as a work boat ?
SELECT "name" FROM table_203_774 WHERE "notes" = 'work boat'
SELECT "name" FROM "table_203_774" WHERE "notes" = 'work boat'