Complex sentence: The functional requirements for Uniform Resource Names are described in RFC 1737, and a URI in the urn: scheme is syntactically a valid URI, consisting of the scheme, and a path, with no authority, query string, or fragment component.
Split into simpler sentences: The functional requirements for Uniform Resource Names are described in RFC 1737. A URI in the urn: scheme is syntactically a valid URI, consisting of the scheme, and a path, with no authority, query string, or fragment component.