Instruction: Evaluate the relevance of each product title in the input to the given query, and then sort the products in descending order of relevance, placing the most relevant product at the top of the ranked list.

Input:
Query: nipple shields for nursing newborn 27mm
Product list:
A: 8 Pieces Contact Nipple Protector Nipple Everters with Clear Carrying Case, Silicone Nipple Extender Made Without BPA for Breastfeeding with Latch Difficulties or Flat or Inverted Nipples
B: Medela SoftShells Breast Shells for Sore Nipples for Pumping or Breastfeeding, Discreet Breast Shells, Flexible and Easy to Wear, Made Without BPA
Answer: A,B