<http://schema.org/availability>
"http://schema.org/InStock"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.jameco.com/1/1/31975-lm2990s-5-0-nopb-low-drop-out-ldo-regulator-negative-5-volt-1-8a-4-pin-3-tab-263.html>