Task: Product_Substitute_Identification
Instruction: Please respond with yes if the product is a suitable substitute for the query, and no if it is not.

Input:
Query: body pillow for back pain
Product: ComfiLife Lumbar Support Pillow for Sleeping Memory Foam Pillow for Back Pain Relief  Side, Back and Stomach Sleepers Triangle Wedge Bolster Pillow  Bed Rest Pillow (White, Standard)
Answer: no