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: Premiertek Antenna (ANT-S2415-90-MIMO)
Product description: This very High performance 2.4 GHz directional Wi-Fi MIMO sector antenna provides broad coverage and 15 dBi gain. It is ideally suited for 2.4 GHz IEEE 802.11B, 802.11G and 802.11N wireless LANs, Bluetooth, public wireless hotspot applications and other outdoor applications where wide coverage is desired.
Product feature: Dimensions (WxDxH): 4.6 in x 2.3 in x 21 in, Weight: 3.97 lbs, Application: outdoor
Product price: $2.18
Product brand: Premiertek
Target attributes: Directivity
Answer: attribute: directivity
value: directional
source: product description