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_26 (average INTEGER, team VARCHAR, games VARCHAR)
### Question:
What is the smallest average for Beijing Guo'an when they played more than 240 games?
### Answer:
SELECT MIN(average) FROM table_name_26 WHERE team = "beijing guo'an" AND games > 240