Instruction: Given a query and a product, identify if the product is somewhat relevant to the query. It fails to fulfill some aspects of the query but the product can be used as a functional substitute. Only output yes or no.

Input:
Query: back rest
Product: Reading Pillow Bed Wedge Large Adult Backrest Lounge Cushion with Arms and Pockets | Back Support for Sitting Up in Bed / Couch for GERD Heartburn Bedrest by ComfortSpa (Grey)
Answer: no