\u0026quot;\u0026gt;\u0026lt;/product_specifications\u0026gt;\u0026lt;/code\u0026gt;. You must ensure that the output is a JSON object that conforms to the schema. The schema requires a single key, `product_specifications`, whose value is a string. The string should be a bulleted list of product specifications in Japanese, following the specified format and exclusions. Ensure no control characters or extra text are included. If no information can be extracted or formatted according to the rules, the output should be an empty string for the `product_specifications` value. カラー:ライトグレー ブランド名:- メーカー型番:- 素材(生地・毛糸):- 代表カラー:グレー