Problem: S1: A pneumatic chain saw driven by an air hose from a conventional external compressor is under development .
S2: A conventional external chain saw driven by an air hose from a pneumatic compressor is currently under development .

Do S1 & S2 convey the same information?

A: no

Problem: S1: Examples of the 19 articles and 3 abstracts on '' The general and organization questions of the cadre and political question '' include :
S2: Examples of 19 articles and 3 abstracts on '' The General and Organizational Questions of the Cadre and the Political Question '' include :

Do S1 & S2 convey the same information?

A: yes

Problem: S1: He went to Al and said , '' you 've lost a father '' and '' I have lost a son '' .
S2: He went to Al and said : '' You have lost a father '' and '' I lost a son '' .

Do S1 & S2 convey the same information?

A:
yes