Expected behavior in Google Rich Snippets: RENDER, SHOULD VALIDATE (ignore additional content)

This page contains several additional elements from GoodRelations and uses proper RDFa datatyping. It should be as valid as the official rich snippets example.

Canon Offer

Average rating: 4.4, based on 89 reviews
Sold by Hepp Space Ventures.
Product title: Heavy Hammer 123
Description: Heavy Hammer 123 hits like a rock.
Payment options: PayPal, Mastercard
Price: USD $99.00 (Valid from : December 30, 2009, through December 30, 2014)
VAT included

In-stock! Order now! Product Name: Heavy Hammer 1234
Description: Heavy Hammer 123 hits like a rock.
EAN/UPC: 013803123784
SKU: 10363780
MPN: Hammer1234