テスト商品
type: Product
description: テスト商品です。
offers: Offer
  price: 1100.00
  price currency: JPY
  availability: https://schema.org/InStock
  item condition: https://schema.org/NewCondition

BreadcrumbList
item list element: Home
  type: ListItem
  position: 1
  item: /
item list element: bookstandga.com
  type: ListItem
  position: 2
  item: https://productregistry.org/merchant/bookstandga.com
item list element: テスト商品
  type: ListItem
  position: 3
  item: https://productregistry.org/product/y5GeEKzP