Instruction: Check the details of the two products to see if they refer to the same product. Output only yes or no.

Input:
Product 1:
title: emedia piano and keyboard method volume 1
description: piano and keyboard method is a powerful and original new approach to building music skills! interactive lessons and multimedia exercises combine for a clear and easy-to-use learning method!
manufacturer: emedia
price: 59.99

Product 2:
title: emedia music corp emedia piano & keyboard method
description: emedia piano and keyboard method cd-rom offers everything you need to learn how to play. over 300 step-by-step lessons start from basics such as hand position rhythm and playing on black keys and move on to music notation sight reading scales ...
manufacturer: nan
price: 49.21
Answer: yes