<http://schema.org/caption>
"Oriole Park at Camden Yards, section 48, row 19, seat 1,2,3,4"^^<http://www.w3.org/2001/XMLSchema#string>
<http://aviewfrommyseat.com/photo/3679/Camden+Yards/section-48/row-19/seat-1%2C2%2C3%2C4/>