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: XFX ATI Radeon HD6670 1 GB DDR5 VGA/DVI/HDMI PCI-Express Video Card HD667XZAF3
Product description: XFX ATI Radeon HD6670 1GB DDR5 VGA/DVI/HDMI PCI-Express Video Card
Product feature: Support ATI CrossFireX Technology Support ATI Eyefinity Technology, Connectors: VGA, DVI, HDMI Thermal: Fansink Support Microsoft Windows 7, Memory Clock: 4000 MHz Memory Interface: 128-bit Bus: PCI-Express 2.1 x16, Chipset: Radeon HD6670 Engine Clock: 800 MHz Video Memory: 1GB DDR5, Stream Processors: 480 RAMDAC: 400 MHz Max. Resolution: 2560 x 1600, Chipset: Radeon HD6670 Engine Clock: 800 MHz Video Memory: 1GB DDR5, Memory Clock: 4000 MHz Memory Interface: 128-bit Bus: PCI-Express 2.1 x16, Stream Processors: 480 RAMDAC: 400 MHz Max. Resolution: 2560 x 1600, Connectors: VGA, DVI, HDMI Thermal: Fansink Support Microsoft Windows 7, Support ATI CrossFireX Technology Support ATI Eyefinity Technology, Support ATI PowerPlay Technology Support AMD HD3D Technology, Support AMD Accelerated Parallel Processing (APP) Technology Support HDCP - High-bandwidth Digital Content Protection, Support Microsoft DirectX 11, Shader Model 5.0 and OpenGL 4.1
Product price: $5.75
Product brand: XFX
Target attributes: Type
Answer: attribute: type
value: video card
source: product title
attribute: type
value: video card
source: product description