id	domain	url
hindsight-4173	www.berkeley.edu	www.berkeley.edu/news/media/releases/991egacy/5-3-1999b.html
hindsight-4173	www.umich.edu	www.umich.edu/-urecord/9596/may21
hindsight-4173	www.college-optometrists.org	www.college-optometrists.org/college/museum/index.htm
hindsight-4173	www.college-optometrists.org	www.college-optometrists.org/college/museum/mushist.htm
hindsight-4173	www.college-optometrists.org	www.college-optometrists.org/college/museum/aperture.htm
hindsight-4173	www.eye.utmem.edu	www.eye.utmem.edu/history/glass.html