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_64 (zone INTEGER, stations VARCHAR)
### Question:
Name the average zone for waddon marsh tram stop
### Answer:
SELECT AVG(zone) FROM table_name_64 WHERE stations = "waddon marsh tram stop"