CREATE TABLE table_20721 ("English Name" TEXT, "Simplified" TEXT, "Traditional" TEXT, "Pinyin" TEXT, "Area" TEXT, "Population" FLOAT, "Density" TEXT)

Name the pinyin for 487 area
SELECT "Pinyin" FROM table_20721 WHERE "Area" = '487'
SELECT "Pinyin" FROM "table_20721" WHERE "Area" = '487'