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: Seraphine Jolene Knot Front Maternity and Nursing Dress - 3/4 Sleeve - Royal Blue
Product description: Seraphine's best selling knot front maternity dress is an elegant option and a staple for any maternity wardrobe. Favored by Kate Middleton! (she wore this dress for her first family portrait with Prince George and the Blossom print version of this dress when visiting her parents for the first time with the baby.) a flattering empire line cut, the knot front dress is designed to flatter the silhouette before, during and after pregnancy. Silky soft and flowing, the Jolene dress features an intricate knot detail that creates gentle gathers to drape effortlessly over a bump or after-baby curves. With3/4 length sleeves and a deep v-neckline, this dress offers chic and effortless day-to-night style. Deep v-neckline that pulls aside for breastfeeding. 95% Viscose 5% Elastane Machine wash/line dry
Product feature: Shipping Information: View shipping rates and policies, ASIN: B07JR1TJLT, Date first listed on Amazon: October 28, 2018, Average Customer Review: 3.5 out of 5 stars 3 customer reviews
Product price: $59.99
Product brand: Seraphine
Target attributes: Neckline
Answer: attribute: neckline
value: v-neckline
source: product description