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

Do S1 & S2 convey the same information?

A: no

Problem: S1: Urfa Gate was rebuilt by Kara Arslan , son of Muhammad .
S2: The Urfa gate was rebuilt by Kara Arslan , the son of Muhammad .

Do S1 & S2 convey the same information?

A: yes

Problem: S1: Only six episodes survive in television archives , one from the third and fourth series , two each from the first , and one from the final series .
S2: In TV archives only six episodes survive , one from the third and fourth series , two each from the first and one from the last series .

Do S1 & S2 convey the same information?

A:
yes