Instruction: Using the product's title, description, features, price, and brand, identify and retrieve the values associated with a specified set of target attributes. Output the extracted values along with their respective sources (e.g., title or feature) indicating where each value was found.

Input:
Product title: MSI A55M-E35 Micro ATX DDR3 2133 NA Motherboards
Product description: MSI A55M-E35: Socket FM2+, AMD A55, SATA 3Gb/s, USB 2.0, 1 PCI-E (1x16), 1 PCI-E x1, 1 PCI, Micro-ATX Motherboard
Product feature: Socket FM2+, AMD A55 chipset, Micro ATX, 1 PCI-E x16, 1 PCI-E x1 and 1 PCI, 1 HDMI, 1 DVI and 1 VGA, Military Class Essentials, Military Class 4 Components, OC Genie 4
Product brand: MSI
Target attributes: Form Factor
Answer: attribute: form factor
value: micro atx
source: product feature
attribute: form factor
value: micro atx
source: product title
attribute: form factor
value: micro-atx
source: product description