Instruction: First, identify the target attributes from the provided list. Then, scan the product title, description, feature, and brand to extract the values associated with each target attribute. Finally, create a list of dictionaries, each containing the extracted attribute, its corresponding value, and the source where it was found.

Input:
Product title: Plantronics - DECT 6.0 Cordless Headset Telephone CT14 (DMi EA
Product description: Forget being tied to your desk, this cordless headset telephone offers complete freedom of movement without compromising sound quality. Noise-canceling microphone eliminates distracting background noise. Convertible headset can be switched between over-the-ear and headband styles. Caller ID memory has easy-to-use Store to Phonebook feature. Rechargeable battery delivers up to ten hours of continuous talk time. Lines: 1; Telephone Type: Cordless; Maximum Wireless Range: 300 ft; Volume Control: Dialpad.
Product feature: Complete freedom of movement., 300-foot range., Exciting DECT 6.0 technology., Ultra-compact dialpad., Noise-cancelling microphone.
Product price: $10.09
Product brand: Plantronics
Target attributes: Number of Lines
Answer: attribute: number of lines
value: lines: 1; telephone
source: product description