Table schema:
CREATE TABLE table_name_8 (rank INTEGER, studio_s_ VARCHAR, day_of_week VARCHAR, year VARCHAR)

Question: What is the average rank of the Reliance Entertainment movie with an opening day on Wednesday before 2012?
SQL: SELECT AVG(rank) FROM table_name_8 WHERE day_of_week = "wednesday" AND year < 2012 AND studio_s_ = "reliance entertainment"