Instruction: Given the title, description, feature, price, and brand of a product and a set of target attributes, extract the value of each target attribute from the product information. Output the extracted value and the corresponding source (e.g., title or feature) denoting where the value is extracted.

Input:
Product title: Yealink YEA-SIP-T19P-E2 Entry-level IP phone 1 Lines HD voice PoE LCD
Product description: Entry-level ip phone with 1 line the sip-t19p e2 is one of yealinks latest answers for the entry-level ip phone that offers features and performance normally associated with much more advanced phones. The quite intentional choice of high-quality materials, combined with a generously large 132x64-pixel graphical lcd that gives a clear 5-line display, guarantees both a smoother user experience and easier access to much more visual information at a glance. Dual 10/100 mbps network ports with integrated poe are ideal for extended network use. The sip-t19p e2 supports single voip account, simple, flexible and secure installation options, plus ipv6 and srtp/https/tls, vlan and qos. It includes headset use, wall-mountable and has been designed very specifically for better business.
Product feature: Yealink Entry-level IP Phone with 1 Line, 90 days warranty for refurbished products - 1 year for new products, Fast shipping
Product price: $5.21
Product brand: Yealink
Target attributes: Type
Answer: attribute: type
value: ip
source: product feature
attribute: type
value: voip
source: product description
attribute: type
value: sip
source: product title
attribute: type
value: ip
source: product title