Question: Liz Rose, is an American country music songwriter best known for her work with Taylor Swift, and  has co-written twenty of Swift's officially-released songs and singles, including which song was written by Swift and Liz Rose and produced by Nathan Chapman, with Swift's aid?
Sentence (from "White Horse (Taylor Swift song)"): "White Horse" is, musically, a country song and uses sparse production to emphasize vocals.
Relevant evidence: No