When 21 is the number of assists how many sets of blocks are there?
CREATE TABLE table_25016555_5 (blocks VARCHAR, assists VARCHAR)
SELECT COUNT(blocks) FROM table_25016555_5 WHERE assists = 21
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE table_25016555_5 (blocks VARCHAR, assists VARCHAR) Question: When 21 is the number of assists how many sets of blocks are there? [/INST] SELECT COUNT(blocks) FROM table_25016555_5 WHERE assists = 21 </s>