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: Portugal National Flag 5ft x 3ft
Product description: 3 foot by 5 foot lightweight Polyester Indoor/Outdoor Flag w/sharp colors. Has 2 metal Gromments for easy mounting & a Canvas Hem for long lasting strength.
Product feature: 3 Foot by 5 Foot, Indoor-Outdoor, Lightweight Polyester Flag with Sharp Vivd Colors, 2 Metal Grommets For Eash Mounting with Canvas Hem for long lasting strength, Express Domestic Shipping is OVERNITE 98% of the time, otherwise 2-day., Express International Shipping is Global Express Mail (2-3 days), FAST SHIPPER: Ships in 1 Business Day; usually the Same Day if pmnt clears by noon CST
Product price: $6.99
Product brand: Country
Target attributes: Special Occasion
Answer: attribute: special occasion
value: country
source: product brand
attribute: special occasion
value: national
source: product title
attribute: special occasion
value: portugal
source: product title