<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<http://schema.org/PeopleAudience>
<http://books.simonandschuster.com/Steve-Jobs/Walter-Isaacson/9781451648539?intcmp=ihp_bb&cp_date=ihp_bb_t1_100611_sj_lm>