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_68 (date VARCHAR, opponent VARCHAR, week VARCHAR, game_site VARCHAR)
### Question:
When did the Titans play the Houston Texans at LP Field before Week 13?
### Answer:
SELECT date FROM table_name_68 WHERE week < 13 AND game_site = "lp field" AND opponent = "houston texans"