Question: What is the FIS Nordic World Ski Championships when holmenkollen is 1976?
Schema: create table table_174491_2 (fis_nordic_world_ski_championships varchar, holmenkollen varchar, PRIMARY KEY (fis_nordic_world_ski_championships))
SQL: select fis_nordic_world_ski_championships from table_174491_2 where holmenkollen = "1976"