Instruction: Answer yes if the product is a substitute for the query and no otherwise.

Input:
Query: posture cushion for office chair
Product: Seat Cushion for Office Chair, Mkicesky Memory Foam Coccyx Cushion Relieve Tailbone, Lower Back, Hip, Sciatica Pain, Ergonomic Seat Pad for Car, Wheelchair, Desk Chair and Sitting on Floor
Answer: no