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: civilization iv dvd-rom (mac)
description: civilization is recognized as one of the greatest game franchises of all-time. now the fun and incredibly addictive strategy game reaches new heights in civilization iv. it has new ways to play and win along with new tools to manage and expand your civilization. civilization comes to life like never...
manufacturer: aspyr media
price: 49.99

Product 2:
title: civilization iv mac os x aspyr
description: system requirements: operating system: mac os x 10.3.9 or later cpu processor: powerpc g5 or intel chipset cpu speed: 1.8 ghz or faster memory: 512 mb or higher hard disk space: 3.5 gb free disk space video card (ati): radeon 9600 or better video ...
manufacturer: nan
price: 45.99
Answer: yes