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_28 (viewers__millions_ INTEGER, episode__number VARCHAR, share VARCHAR)
### Question:
What is the average number of million viewers that watched an episode before episode 11 with a share of 4?
### Answer:
SELECT AVG(viewers__millions_) FROM table_name_28 WHERE episode__number < 11 AND share = "4"