Table schema:
CREATE TABLE table_name_50 (place VARCHAR, bronze VARCHAR, silver VARCHAR, year VARCHAR)

Question: In which Place was the Silver won by valeri postoianov ( urs ) later than 1969 and the Bronze won by alexander gazov ( urs )?
SQL: SELECT place FROM table_name_50 WHERE silver = "valeri postoianov ( urs )" AND year > 1969 AND bronze = "alexander gazov ( urs )"