Instruction: Given the title, description, manufacturer, and price of two products, identify if they are the same product. Only output yes or no.

Input:
Product 1:
title: chessmaster 9000 (mac)
description: chessmaster 9000 places you where you must master one of history's great challenges -- the age-old game of chess! this new & improved chess engine features 150 different opponents from beginner to grandmaster level. speed up the action in speed chess mode you are invited to test your brain by...
manufacturer: feral interactive
price: 39.99

Product 2:
title: brighter minds backyard sports
description: nan
manufacturer: nan
price: 19.99
Answer: no