Rudolph the Red-Nosed Reindeer is a legendary reindeer, created by Robert Lewis May, usually depicted as a young fawn who barely has antlers, with a glowing red nose, popularly known as "Santa's ninth reindeer." When depicted, he is the lead reindeer pulling Santa's sleigh on Christmas Eve. The luminosity of his nose is so great that it illuminates the team's path through inclement winter weather.
Robert Lewis May is a legendary reindeer.
It's definitely incorrect as they are clearly a person and not a reindeer. It's difficult because the phrase legendary reindeer is mentioned very close to Robert in the text, so this probably confused the system.