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_49 (gsr_class VARCHAR, type VARCHAR)
### Question:
What GSR class is associated with a 0-4-2t type?
### Answer:
SELECT gsr_class FROM table_name_49 WHERE type = "0-4-2t"