Problem: S1: He was an intermediary with the United States Olympic Committee and was a member of the United States Postal Service arbitration panel .
S2: He was a mediator with the United States Postal Service and was a member of the United States Olympic Committee arbitration panel .

Do S1 & S2 convey the same information?

A: no

Problem: S1: Police Tactical Group ( SERT ) is the Special Emergency Response Team of the Queensland Police , Australia .
S2: Special Emergency Response Team ( SERT ) is the Police Tactical Group of the Queensland Police Service in Australia .

Do S1 & S2 convey the same information?

A: no

Problem: S1: G + is the normal value or number of a game under the grundy play convention .
S2: G + is the normal value or the number of a game under the Grundy Convention .

Do S1 & S2 convey the same information?

A:
yes