_:n5bfe73da3e8e43e9896b6b527ee5dc79xb3
<http://schema.org/item>
<https://forums.oscommerce.com/forum/7-general-add-ons-support/>
<https://forums.oscommerce.com/topic/50221-contribution-individual-product-shipping-prices/?page=6&tab=comments#comment-528004>