<http://schema.org/thumbnailUrl>
<http://www.blogcdn.com/slideshows/images/slides/332/593/4/S3325934/slug/l/aptopix-winter-weather-1.jpg>
<http://www.aol.com/article/2015/03/06/spring-fever-prolonged-warm-spell-will-thaw-midwest-plains/21150539/>