Problem: S1: At the 2011 census , 86.4 % of inhabitants were Roma , 5.9 % Hungarians , 5.2 % Romanians and 0.7 % Germans .
S2: In the 2011 census , 86.4 % of inhabitants were Roma , 5.9 % Hungarians , 5.2 % Romanians and 0.7 % Germans .

Do S1 & S2 convey the same information?

A: yes

Problem: S1: Ma Smith is a widow of two own children : Will and Dora Smith .
S2: Dora Smith is widow with two of her own children : Will and Ma Smith .

Do S1 & S2 convey the same information?

A: no

Problem: S1: The philosophical and legal provisions of the concrete concept of state of Roerich are based on :
S2: The philosophical and legal provisions of Roerich 's concrete conceptual concept of the state are based on

Do S1 & S2 convey the same information?

A:
yes