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_40 (_inns VARCHAR, player VARCHAR, wickets VARCHAR)
### Question:
How many 5+/inns have tyron henderson as the player, with wickets less than 21?
### Answer:
SELECT COUNT(5) + _inns FROM table_name_40 WHERE player = "tyron henderson" AND wickets < 21