instruction: When was Boyd Raccoon published ?
response: SELECT DISTINCT paper.year FROM author, keyphrase, paper, paperkeyphrase, writes WHERE author.authorname = 'Boyd' AND keyphrase.keyphrasename = 'Raccoon' AND paperkeyphrase.keyphraseid = keyphrase.keyphraseid AND paper.paperid = paperkeyphrase.paperid AND writes.authorid = author.authorid AND writes.paperid = paper.paperid