Question: The Australian Lightwing SP-4000 Speed is designed and produced by Australian Lightwing of a town that lies on the Richmond River and serves as a gateway to what?
Sentence (from "The Richmond River Express Examiner"): It has been previously published as "The Richmond River Express", "The Richmond River Express and Casino Kyogle Advertiser" and "The Richmond River Express and Tweed Advertiser".
Relevant evidence: No