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: Vollrath (58620) Ladle with Hooked Handle (2-Ounce, Stainless Steel)
Product description: This ladle has grooved handle for added strength. Made of 18-8 stainless steel material. Hooked handle to prevent sliding and easy storage. Attractive bright finish. Comes with 2-ounce capacity. Measures 2-1/4-inch bowl by 9-7/8-inch handle length.
Product feature: This ladle has grooved handle for added strength, Made of 18-8 stainless steel material, Hooked handle to prevent sliding and easy storage, Comes with 2-ounce capacity, Measures 2-1/4-inch bowl by 9-7/8-inch handle length
Product price: $22.20
Product brand: Vollrath
Target attributes: Capacity
Answer: attribute: capacity
value: 2-ounce
source: product description
attribute: capacity
value: 2-ounce
source: product title
attribute: capacity
value: 2-ounce
source: product feature