{"product_id":"9784251083012","title":"重い？　軽い？　重さのふしぎ","description":"素材によって異なる重さ、水中での重さ、空気の重さ、もののつり合いなど、いろいろな重さのふしぎを紹介！","brand":"あかね書房","offers":[{"title":"Default Title","offer_id":50385184162096,"sku":null,"price":4180.0,"currency_code":"JPY","in_stock":true}],"url":"https:\/\/www.maruzenjunkudo.co.jp\/products\/9784251083012","provider":"丸善ジュンク堂書店ネットストア","version":"1.0","type":"link"}