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: Angie's Kettle Corn Boom Chicka Pop Sweet Barbecue Popcorn - 7 oz.
Product description: Hungry for something that's can't-put-it-down delicious. Angie's BOOMCHICKAPOP Sweet Barbeque Popcorn is a road-trip ready lemonade-stand lovin firefly-finding picnic-basket packing sweetly tangy snack. Like all of Angie's products it's gluten-free contains non-GMO popcorn and made only with ingredients youll love. Bring it to your next barbeque and tell everyone that BYOB stands for Bring Your Own BOOMCHICKAPOP!Country of origin : USAGluten Free : YesKosher : YesSize : 7 OZPack of : 12Product Selling Unit : case, 'POPCORN, SUNFLOWER OIL, DRIED CANE SUGAR, SEA SALT, MALTODEXTRIN, VINEGAR POWDER (MALTODEXTRIN, WHITE DISTILLED VINEGAR), ONION AND GARLIC POWDER, TOMATO POWDER, SPICES, TORULA YEAST, SMOKED PAPRIKA, MAPLE SUGAR, CITRIC ACID, NATURAL FLAVORS, YEAST EXTRACT, MALIC ACID, OLEORESIN PAPRIKA', Statements regarding dietary supplements have not been evaluated by the FDA and are not intended to diagnose, treat, cure, or prevent any disease or health condition.
Product brand: BOOMCHICKAPOP
Target attributes: Flavor
Answer: attribute: flavor
value: barbeque
source: product description
attribute: flavor
value: barbecue
source: product title