Instruction: Given the title, description, feature, price, and brand of a product and a set of target attributes, extract the value of each target attribute from the product information. Output the extracted value and the corresponding source (e.g., title or feature) denoting where the value is extracted.

Input:
Product title: MARK'STYLE TOKYO STORAGE.it Notebook M Red
Product description: The new STORAGE.it is all for your mobility. Form ideas by getting in touch with your thoughts and senses. The contents of the pocket can be seen easily and smartphone touchscreens can be operated through the cover. The fold in the pocket provides plenty of storage space, and the slots and slit can be used as pen holders and earphone cord outlets.
Product feature: Size / H189 x W144mm, Material / Cover with zipper pocket: PVC Notebook: paper, 80 pages, saddle stitch bound, Left pages have special grid lines, right pages have 7mm-wide lines to organize information with wider pitches.
Product price: $15.51
Product brand: MARK'STYLE TOKYO
Target attributes: Guest Book Type
Answer: attribute: guest book type
value: None
source: None