query: SELECT product_name ,  product_id FROM products WHERE product_price BETWEEN 600 AND 700
question: What-all names and ids of costing 600 products and 700?
query_toks: SELECT product_name , product_id FROM products WHERE product_price BETWEEN 600 AND 700
query_toks_no_value: select product_name , product_id from products where product_price between value and value
question_toks: What-all names and ids of costing 600 products and 700?