Problem: S1: During the Vietnam War , the 104th Field Battery also served with the 12th Field Regiment -- to which the 161st Field Battery RNZA was also attached .
S2: During the Vietnam War , the 104th field battery also served with the 12th field regiment , which was also assigned to the 161th field battery RNZA .

Do S1 & S2 convey the same information?

A: yes

Problem: S1: In 1975 he moved to Odibo , and in 1977 returned to Windhoek .
S2: In 1975 he returned to Odibo and went to Windhoek in 1977 .

Do S1 & S2 convey the same information?

A: no

Problem: S1: Jean Alfred Fournier had two brothers , Milenko Zujovic , who wrote books on jurisprudence , and Dr. Jevrem Zujovic , whose mentor Jovan Zujovic was .
S2: Jovan Zujovic had two brothers , Milenko Zujovic , who authored books on jurisprudence , and Dr. Jevrem Zujovic , whose mentor was Jean Alfred Fournier .

Do S1 & S2 convey the same information?

A:
no