Instruction: Parse the product information to locate the target attribute, and then provide the extracted value of the target attribute and its source in the output, specifying None if the attribute is not present.

Input:
Product title: Professional Kingston MicroSDHC 4GB (4 Gigabyte) Card for SanDisk Sansa Clip Player with custom formatting and Standard SD Adapter. (SDHC Class 4 Certified)
Product description: This Kingston MicroSD card is specifically designed for the SanDisk Sansa Clip Player
Product feature: This Kingston MicroSD card is specifically designed for the SanDisk Sansa Clip Player, Share your content collections with friends, family and colleagues easily., Kingstons removable storage solution specifically designed for mobile phones with expansion slots., Its ultra-small size consumes very little power from your handset, to give you longer battery life on your phone., Now you can instantly move pictures between multiple devices for sharing and printing using this card as well.
Product brand: Kingston
Target attributes: Format
Answer: attribute: format
value: microsdhc
source: product title
attribute: format
value: microsd
source: product feature
attribute: format
value: sdhc
source: product title
attribute: format
value: microsd
source: product description