Great, the amazon.com product URL approach works for a pretty big many-to-many hierarchy! e.g. - https://www.amazon.com/Moleskine-Classic-Cover-Notebook-Ruled

Great, the amazon.com product URL approach works for a pretty big many-to-many hierarchy! e.g. - https://www.amazon.com/Moleskine-Classic-Cover-Notebook-Ruled/dp/8883701127 https://www.amazon.com/Moleskine-Classic-Cover-Notebook-Rule... - https://www.amazon.com/dp/8883701127 https://www.amazon.com/dp/8883701127