CREATE TABLE table_name_96 (country VARCHAR2, fis_nordic_world_ski_championships VARCHAR2)

Which Country has a FIS Nordic World Ski Championships of 1948, 1950?
SELECT country FROM table_name_96 WHERE fis_nordic_world_ski_championships = "1948, 1950"
SELECT "country" FROM "table_name_96" WHERE "1948, 1950" = "fis_nordic_world_ski_championships"