Problem: S1: By contrast , cold years are often associated with dry Pacific La Nina episodes .
S2: Dry years , by contrast , are often associated with cold Pacific La Nina episodes .

Do S1 & S2 convey the same information?

A: no

Problem: S1: The general 's son Theodor storms the royal palace and frees his father ; the Duke repents , apologizes to Archas , and punishes Boroskie .
S2: The son of General , Theodor , storms the royal palace and frees his father , the duke repents , apologizes to Archas and punishes Boroskie .

Do S1 & S2 convey the same information?

A: yes

Problem: S1: Katerina Maleeva defeated Audra Celler 7 -- 6 , 6 -- 2 .
S2: Audra Keller defeated Katerina Maleeva 7 -- 6 , 6 -- 2 .

Do S1 & S2 convey the same information?

A:
no