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

Input:
Product title: Black Genuine Leather Adjustable Sofa Bed
Product description: The convertible leather MANHATTAN sofa boasts a sophisticated design to suit a variety of needs. The armrests and back are adjustable for maximum comfort; the back has 2 positions, and the armrests have 5, meaning you can completely personalize the MANHATTAN sofa to your preference. The armrests can be moved independently of each other. The leather surface is supple and soft to the touch, chosen to make the sofa as comfortable as possible, even when it's not a sofa. Cleaning instructions: Wipe leather, base, and arm-rests with a slightly damp smooth cloth Warning: Placing leather furniture in direct sunlight may cause colors to fade. Leather may dry if placed next to a strong source of heat. Using a rough cloth or abrasive sponge may scratch the material. Do not use any aggressive cleaning agents.
Product feature: 3 in 1 function: sofa, sofa bed, or pull-out bed, Easy assembly, Length: 74.8 in Height: 33.86 in Dimensions of bed: 74.8 x 45.28 in, Black Genuine leather, Plush and comfortable
Product brand: miliboo
Target attributes: Material
Answer: attribute: material
value: genuine leather
source: product feature
attribute: material
value: genuine leather
source: product title
attribute: material
value: leather
source: product description
attribute: material
value: leather
source: product feature