CREATE TABLE table_60878 ("English Name" TEXT, "Simplified" TEXT, "Traditional" TEXT, "Pinyin" TEXT, "Area" TEXT, "Population" TEXT, "Density" TEXT)

What shows for simplified when the density is 52?
SELECT "Simplified" FROM table_60878 WHERE "Density" = '52'
SELECT "Simplified" FROM "table_60878" WHERE "Density" = '52'