How many extra points catagories are there for the na player? 
CREATE TABLE table_25642873_2 (extra_points VARCHAR, player VARCHAR)
SELECT COUNT(extra_points) FROM table_25642873_2 WHERE player = "na"
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE table_25642873_2 (extra_points VARCHAR, player VARCHAR) Question: How many extra points catagories are there for the na player?  [/INST] SELECT COUNT(extra_points) FROM table_25642873_2 WHERE player = "na" </s>