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: Yete Men's Collared Button Striped Polo Short-Sleeve Plain Shirt
Product feature: Classic Striped Short-Sleeve Polo Solid-Tone Collar, Shirts Chest: TAG M=92CM/36.2'' TAG L=94CM/37'' TAG XL=96/37.7'' TAG XXL=100CM/39.3'' TAG 3XL=104CM/40.9'' TAG 4XL=108CM/42.5'', Shirts Length: TAG M=68CM/26.7" TAG L=70CM/27.5" TAG XL=72CM/28.3" TAG XXL=74CM/29.1" TAG 3XL=76CM/29.9" TAG 4XL=78CM/30.7", Size Available From M-4XL Please Compare Your Size To The Size Guide In The Left Picture or Description, Men's Collared Button Plain Shirt, Product Dimensions: 7.9 x 5.9 x 7.9 inches, Shipping Weight: 8 ounces, ASIN: B01D5XCMV8, Date first listed on Amazon: March 19, 2016, Average Customer Review: Be the first to review this item
Product brand: Yete
Target attributes: Sleeve Style
Answer: attribute: sleeve style
value: short-sleeve
source: product title
attribute: sleeve style
value: short-sleeve
source: product feature