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: JAM Paper A7 Invitation Envelopes - 5 1/4" x 7 1/4" - Ruby Red - 25/pack
Product description: JAM Paper Colored A7 Greeting Card Invitation Envelopes are a great product if you are looking for a high quality envelope for a great value. Measuring 5.25 x 7.25 inches (A7), these envelopes are cut from 24 lb paper, have a smooth paper finish, straight flap, and a moisture activated gum closure. Great to use for announcements such as invitations, greeting cards, thank you cards, RSVP's or gifts for birthdays, weddings, holidays and more. And with a wide selection of colors, it should be easy to choose a style that fits your theme or occasion. Available Colors: Light Yellow, Sunflower Yellow, Dark Orange, Mandarin Orange, Dark Green, Chartreuse Green, Dark Red, Burgundy, Salmon Pink, Magenta Pink, Light Baby Pink, Light Baby Blue, Presidential Blue, Navy Blue, Aqua Blue, Teal Blue, Dark Purple, Light Purple, Grey, Cappuccino Brown, Tan, Black, and White.
Product feature: Color: Ruby Red Recycled Paper Envelopes, Size: A7 (5.25 x 7.25 inches), Quantity: 25 envelopes per pack, Envelope Features: Straight flap gum closure, high quality Smooth paper finish, These envelopes are perfect to use for sending invitations, greeting cards, RSVP's, thank you cards, gifts for birthdays, graduations, holidays and more
Product brand: JAM Paper
Target attributes: Type
Answer: attribute: type
value: invitation
source: product title
attribute: type
value: invitations
source: product feature
attribute: type
value: invitation
source: product description