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: crusader kings
description: crusader kings is a unique historical role-player that puts you into a feudal society fraught with dangers. travel to medieval europe between 1066 and 1419 a.d. -- here you will build a dynasty. gain wealth and favor from the nobles while earning prestige and piety. unlike other strategy games the...
manufacturer: atari
price: 19.99

Product 2:
title: atari 26162 crusader kings mb
description: crusader kings mbmodel- 26162vendor- atarifeatures- crusader kings mini box crusader kings is a strategy game based on the award-winning and highly successful europa universalis engine. it focuses on the feudal kingdoms of medieval europe in the ...
manufacturer: nan
price: 21.99
Answer: yes