user: Question: How many trains leave from Puri?
Columns: ['Train No.', 'Train Name', 'Origin', 'Destination', 'Frequency']
Types: ['text', 'text', 'text', 'text', 'text']
Sample row: ['12067/68', 'Guwahati Jorhat Town Jan Shatabdi Express', 'Guwahati', 'Jorhat', 'Except Sunday']
SQL:

assistant: SELECT COUNT("Train Name") FROM "Table" WHERE "Origin" = 'Puri';