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_98 (constructor VARCHAR, chassis VARCHAR)
### Question:
Which constructor makes the ej15 ej15b chassis?
### Answer:
SELECT constructor FROM table_name_98 WHERE chassis = "ej15 ej15b"