<http://schema.org/availability>
"http://schema.org/InStock"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.jameco.com/1/1/53421-rsp-500-5-ac-dc-switching-enclosed-power-supply-single-output-pfc-function-5-volts-90-amps-450-watts.html>