CREATE TABLE table_name_32 (best_10_year_period VARCHAR, best_2_year_period VARCHAR)

Which best 10-year period has a best 2-year period of petrosian?
SELECT best_10_year_period FROM table_name_32 WHERE best_2_year_period = "petrosian"
SELECT "best_10_year_period" FROM "table_name_32" WHERE "best_2_year_period" = "petrosian"