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_13 (number_in_class INTEGER, owner VARCHAR)
### Question:
What is the total number in class for the Whitehaven Coal?
### Answer:
SELECT SUM(number_in_class) FROM table_name_13 WHERE owner = "whitehaven coal"