Problem: S1: If the first upper diagonal is with 2 multiplied main diagonal , it is of the second kind .
S2: If the first upper diagonal is the main diagonal multiplied by 2 , it is of the second kind .

Do S1 & S2 convey the same information?

OPTIONS:
- no
- yes

A: yes

Problem: S1: The best-known version of the song was recorded by Dick Rowe and produced in 1953 by The Stargazers in England .
S2: Probably the best-known version of the song was recorded by Dick Rowe and produced in the UK by The Stargazers in 1953 .

Do S1 & S2 convey the same information?

OPTIONS:
- no
- yes

A: yes

Problem: S1: This was an open tunic and trousers , white shirt and black tie .
S2: This was an open-necked tunic and trousers , white shirt and black tie .

Do S1 & S2 convey the same information?

OPTIONS:
- no
- yes

A:
yes