<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://roa.h-cdn.co/assets/cm/14/48/547be8db8eedf_-_taxi_03-150x150-lg.jpg>
<http://www.roadandtrack.com/new-cars/news/a2278/new-york-selects-nissan-van-as-its-new-taxi-21666/>