Problem: S1: Sales began in North America in the third quarter of 2008 and in Europe in early 2009 as a model for 2010 .
S2: Sales started in the third quarter of 2008 in Europe and early 2009 in North America as a model for 2010 .

Do S1 & S2 convey the same information?

A: no

Problem: S1: The Izvoarele River is a tributary of the Podriga River in Romania .
S2: Izvoarele River is a tributary of the River Podriga in Romania .

Do S1 & S2 convey the same information?

A: yes

Problem: S1: Now to solve the indifference bid price find for formula _ 31 .
S2: Now solve the indifference bid price for Formula 31 .

Do S1 & S2 convey the same information?

A:
yes