query: SELECT product_id FROM products_booked GROUP BY product_id HAVING count(*)  =  3
question: What-all id products what which is booked it 3 times?
query_toks: SELECT product_id FROM products_booked GROUP BY product_id HAVING count ( * ) = 3
query_toks_no_value: select product_id from products_booked group by product_id having count ( * ) = value
question_toks: What-all id products what which is booked it 3 times?