Below is an context that describes a sql query, paired with an question that provides further information. Write an answer that appropriately completes the request.  # noqa: E501
### Context:
CREATE TABLE table_name_51 (year VARCHAR, role VARCHAR, theatre VARCHAR)
### Question:
Tell me the total number of years for lady cecily waynflete and opera house, kennedy center
### Answer:
SELECT COUNT(year) FROM table_name_51 WHERE role = "lady cecily waynflete" AND theatre = "opera house, kennedy center"