CREATE TABLE table_46971 ("Municipality" CLOB, "Population" FLOAT, "Inhabitants per km\\u00b2" FLOAT, "Area  ( in km\\u00b2 ) " FLOAT, "Markatal" FLOAT, "Island" CLOB, "Region" CLOB)

What is the sum of Markatal, when Inhabitants Per Km is less than 13, and when Area (in Km ) is 27?
SELECT SUM("Markatal") FROM table_46971 WHERE "Inhabitants per km\u00b2" < '13' AND "Area (in km\u00b2)" = '27'
SELECT SUM("Markatal") FROM "table_46971" WHERE "Area (in km\u00b2)" = '27' AND "Inhabitants per km\u00b2" < '13'