Problem: S1: When Blanchard later this year donated his farmland to the college , Warren L. Wheaton named the school after him and it was known as Wheaton College .
S2: When Warren L. Wheaton donated his farmland to the college later that year , Blanchard renamed the school after him and it became known as Wheaton College .

Do S1 & S2 convey the same information?

A: no

Problem: S1: Soon Erko Elblaus and Karl Kallas were replaced by Rasmus Randvee and Gertrud Luhaoja .
S2: Erko Elblaus and Gertrud Luhaoja were soon replaced by Rasmus Randvee and Karl Kallas .

Do S1 & S2 convey the same information?

A: no

Problem: S1: Tipsarevic started playing tennis at age six , and at the age of nine , began playing at the New Belgrade Tennis Club with Russian coach Roman Savochkin .
S2: Tipsarevic started playing tennis at the age of six , and at the age of nine he began with the Russian coach Roman Savochkin at the New Belgrade Tennis Club .

Do S1 & S2 convey the same information?

A:
yes