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_6 (position VARCHAR, weight__kg_ VARCHAR, birthdate VARCHAR)
### Question:
What position did the player play who weighed less thna 91 kg and was born on March 5, 1977?
### Answer:
SELECT position FROM table_name_6 WHERE weight__kg_ < 91 AND birthdate = "march 5, 1977"