Input: Sentence 1: While service standards differ (many countries offer two mail deliveries each weekday, for example), even at 33 cents, U.S. prices compare favorably with first-class rates overseas--Japan charges 74 cents, Germany 59 cents, France 48 cents, and Great Britain 37 cents. Sentence 2: Service standards differ and US prices  are higher than other countries.
Output: 

 yes