<https://www.artisanclarinets.com/en-jp/products/buffet-crampon-prestige-eb-contra-alto-clarinet-low-eb?variant=40015383822388#offer>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://www.artisanclarinets.com/en-jp/products/buffet-crampon-prestige-eb-contra-alto-clarinet-low-eb>