CREATE TABLE table_4255 ("Name" CLOB, "Family name" CLOB, "Receptor" CLOB, "Coreceptor" CLOB, "Property" CLOB, "Chromosomal location" CLOB)

How many different chromosomal locations are there in the family il-1f8?
SELECT COUNT("Chromosomal location") FROM table_4255 WHERE "Family name" = 'IL-1F8'
SELECT COUNT("Chromosomal location") FROM "table_4255" WHERE "Family name" = 'IL-1F8'