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_73 (fleet_size VARCHAR, class VARCHAR)
### Question:
What is the fleet size of the Vanguard 0-6-0dh class?
### Answer:
SELECT fleet_size FROM table_name_73 WHERE class = "vanguard 0-6-0dh"