Problem: S1: The train station was opened on December 8 , 1890 , closed on November 8 , 1969 and demolished in 1971 .
S2: The station was closed on December 8 , 1890 , opened on 8 November 1969 and was demolished in 1971 .

Do S1 & S2 convey the same information?

A: no

Problem: S1: The song begins with the same spoken segment of Prince that the EP ends .
S2: The song ends with the same spoken segment from Prince that begins the EP .

Do S1 & S2 convey the same information?

A: no

Problem: S1: In the United States , classified letters may be used to send classified material up to the level registered by Secret .
S2: In the United States , registered mail may be used to send classified material up to the Secret classified level .

Do S1 & S2 convey the same information?

A:
no