query: SELECT count(DISTINCT customer_id) FROM customer_orders WHERE order_status  =  "Cancelled"
question: How many customer them having at least one a order a status "A-Cancelled"?
query_toks: SELECT count ( DISTINCT customer_id ) FROM customer_orders WHERE order_status = `` Cancelled ''
query_toks_no_value: select count ( distinct customer_id ) from customer_orders where order_status = value
question_toks: How many customer them having at least one a order a status "A-Cancelled"?