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: 2014 Maternity Pregnant Women Vest Chiffon Dress Round Neck Beaded Dress
Product description: Style: Europe Fabric: chiffon / georgette For the season: summer, spring, autumn Thickness: thin section Collar type:round Sleeve: Sleeveless Color: Apricot, black, bare Size: M, L, XL Pattern: solid Skirt Length: Long
Product feature: Using high-grade chiffon fabrics, exquisite workmanship., Loose hem, cool and breathable., Cool delicate soft skin-friendly, natural pollution., Unique beading design, wearing more type., Opposite of gentle washing recommended, should not use hot water, hang to dry open, color washing., ASIN: B00KFVO5SM, Date first listed on Amazon: May 20, 2014, Average Customer Review: 5.0 out of 5 stars 1 customer review
Product brand: ACEFAST INC
Target attributes: Neckline
Answer: attribute: neckline
value: round neck
source: product title