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: Yu-Gi-Oh! - Dogoran, the Mad Flame Kaiju (CORE-EN087) - Clash of Rebellions - 1st Edition - Rare
Product description: Yu-Gi-Oh! is a strategic trading card game in which two players Duel each other using a variety of Monster, Spell, and Trap Cards to defeat their opponent's monsters and be the first to drop the other's Life Points to 0. Card Name : Dogoran, the Mad Flame Kaiju Card Type : Effect Monster Card Number : CORE-EN087 Set : Clash of Rebellions Attribute : Fire Level : 8 Monster Type : Dinosaur Passcode : 93332803 Card Text : You can Special Summon this card (from your hand) to your opponent's side of the field in Attack Position, by Tributing 1 monster they control. If your opponent controls a "Kaiju" monster, you can Special Summon this card (from your hand) in Attack Position. You can only control 1 "Kaiju" monster. Once per turn: You can remove 3 Kaiju Counters from anywhere on the field; destroy all monsters your opponent controls. This card cannot attack the turn you activate this effect.
Product feature: A single individual card from the Yu-Gi-Oh! trading and collectible card game (TCG/CCG)., This is of Rare rarity., From the Clash of Rebellions set., You will receive the 1st Edition version of this card.
Product price: $4.04
Product brand: Yu-Gi-Oh!
Target attributes: Game
Answer: attribute: game
value: yu-gi-oh!
source: product brand
attribute: game
value: yu-gi-oh!
source: product feature
attribute: game
value: yu-gi-oh!
source: product title
attribute: game
value: yu-gi-oh!
source: product description