Table schema:
CREATE TABLE table_name_3 (year VARCHAR, nominee VARCHAR, award_ceremony VARCHAR, result VARCHAR)

Question: How many times is the award ceremony laurence olivier award, result is won and the nominee is imelda staunton?
SQL: SELECT COUNT(year) FROM table_name_3 WHERE award_ceremony = "laurence olivier award" AND result = "won" AND nominee = "imelda staunton"