Assertion: zip code | /r/HasProperty | the system of postal codes
Facets:
Source sentences:
text: The ZIP code is the system of postal codes used by the United States Postal Service (USPS).
text: ZIP codes are a system of postal codes used by the United States Postal Service since 1963.
text: The ZIP code is the system of postal codes used by the United States Postal Service (USPS).