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_78 (session VARCHAR, discipline VARCHAR, event VARCHAR)
### Question:
The 1977 Japanese Grand Prix in the open wheel discipline has what session?
### Answer:
SELECT session FROM table_name_78 WHERE discipline = "open wheel" AND event = "1977 japanese grand prix"