Question: A Canadian postal code is a six-character string that forms part of a postal address in Canada, like British and Dutch postcodes, Canada's postal codes are alphanumeric, Postal codes in the Netherlands, known as "postcodes", are alphanumeric, consisting of how many digits followed by two uppercase letters?
Sentence (from "Postal codes in the Netherlands"): Postal codes in the Netherlands, known as "postcodes", are alphanumeric, consisting of four digits followed by two uppercase letters.
Relevant evidence: Yes