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_63 (rank VARCHAR, mountain_peak VARCHAR)
### Question:
what is the rank when the mountain peak is isthmus peak?
### Answer:
SELECT rank FROM table_name_63 WHERE mountain_peak = "isthmus peak"