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: Hitachi P50S602 50-Inch 1080p Plasma HDTV with Swivel Stand
Product description: Hitachi P50S602 50" Full HD1080p Plasma TV, 1920 x 1080p with Swivel Stand
Product feature: 1920 x 1080p Resolution, Full HD1080p, Swivel Stand, Dot by Dot aspect mode and Deep Color - 4 Preset Color Temperatures with D. Cinema, 3 HDMI (v. 1.3 with Deep Color, x.v. Color, CEC - 1080p60, 1080p24 input compatible inputs, Anti-Reflective Screen with Ultra High Contrast Black Stripe Filter
Product brand: Hitachi
Target attributes: Depth
Answer: attribute: depth
value: None
source: None