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: jeansian Men's Slim Fit Long Sleeves Casual Shirts Z020a Black US S
Product feature: Package Dimensions: 10.7 x 6.6 x 2 inches, Shipping Weight: 7.2 ounces, ASIN: B010F8YS3G, Item model number: Z020a_Black_S, Date first listed on Amazon: August 9, 2016, Average Customer Review: 5.0 out of 5 stars 2 customer reviews
Product brand: jeansian
Target attributes: Sleeve Style
Answer: attribute: sleeve style
value: long sleeves
source: product title