query: SELECT date_valid_from ,  date_valid_to FROM Customers_cards WHERE card_number  =  "4560596484842"
question: Show the date valid from and the date valid to for the card with card number '4560596484842'.
query_toks: SELECT date_valid_from , date_valid_to FROM Customers_cards WHERE card_number = `` 4560596484842 ''
query_toks_no_value: select date_valid_from , date_valid_to from customers_cards where card_number = value
question_toks: Show the date valid from and the date valid to for the card with card number '4560596484842'.