Instruction: Extract the value of the target attribute from the given product information and output it along with the corresponding source.

Input:
Product title: 3dRose wb_184940_1"Im a Dad-Whats Your Superpower-Funny Gift for Fathers Day Sports Water Bottle, 21 oz, Multicolor
Product description: Made of stainless steel. Capacity: 21oz;2 twist on caps - 1 easy-flow drinking spout and 1 standard cap. Carabineer clip also included; Custom printed high gloss image sublimated directly to white glossy exterior surface; Fits most cup holders; Not intended for dishwasher or microwave use
Product feature: Fits most cup holders, Not intended for dishwasher or microwave use, Custom printed high gloss image sublimated directly to white glossy exterior surface
Product price: $13.95
Product brand: 3dRose
Target attributes: Volume
Answer: attribute: volume
value: 21 oz
source: product title
attribute: volume
value: 21oz;
source: product description