How many different kinds of information sources are there for injury accidents?
CREATE TABLE injury_accident (SOURCE VARCHAR)
SELECT COUNT(DISTINCT SOURCE) FROM injury_accident
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE injury_accident (SOURCE VARCHAR) Question: How many different kinds of information sources are there for injury accidents? [/INST] SELECT COUNT(DISTINCT SOURCE) FROM injury_accident </s>