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: Demdaco Kelly Rae Roberts Hello Possibility Mug
Product description: Kelly Rae Roberts started her career as a social worker but later decided to follow her heart's passion to become an artist. When she finally put paint onto paper, Kelly discovered a whole new world. Her unique look of layered mixed-media includes acrylics, oils, collage and ink. Her art expresses honesty and tenderness while remaining lighthearted and colorful. Kelly hopes her work invokes a sense of clarity and peace inside of people as they walk their own path in life and that it inspires them to discover their own limitlessness. "My hope is that my work invokes a sense of clarity and peace inside of you as you walk your own path in life and that it inspires you to discover your own limitlessness" - Kelly Rae Roberts.
Product feature: Designed by artist, Kelly Rae Roberts, Reads, "Hello possibility, Hello gratitude, Hello wide open heart", Made from: Ceramic: Stoneware, Measures 4"h, Makes a great gift
Product brand: DEMDACO
Target attributes: Season
Answer: attribute: season
value: None
source: None