Problem: S1: Biswas was married to Jyotsna Biswas . They had a daughter Aruna Biswas .
S2: She was married to Jyotsna Biswas , they had a daughter Aruna Biswas .

Do S1 & S2 convey the same information?

A: yes

Problem: S1: Thus , the white drops on a red field are an allusion to his name and his ancestry .
S2: Thus , the red drops on a white field are an allusion to both his name and his ancestry .

Do S1 & S2 convey the same information?

A: no

Problem: S1: Tomasz Merta ( 7 November 1965 , Legnica -- 10 April 2010 , Smolensk ) was a Polish historian and Polish Undersecretary of State from 2005-2010 .
S2: Tomasz Merta ( November 7 , 1965 , Legnica -- April 10 , 2010 , Smolensk ) was a Polish historian and Polish Secretary of State from 2005-2010 .

Do S1 & S2 convey the same information?

A:
no