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_23284271_7 (team VARCHAR, score VARCHAR)
### Question:
How many teams played against the Mavericks in a game where the score was w 99–91 (ot)?
### Answer:
SELECT COUNT(team) FROM table_23284271_7 WHERE score = "W 99–91 (OT)"