Problem: S1: The founders of the Charter 77 Foundation , Frantisek Janouch and Tal Bashan , and the German activist Rainer Hoss have participated in the debates with the Israeli journalist Ada Kolman .
S2: Founders of the Charta 77 Foundation Frantisek Janouch and Tal Bashan or the German activist Rainer Hoss with the Israeli journalist Ada Kolman have participated in the debates .

Do S1 & S2 convey the same information?

A: yes

Problem: S1: Canadian postage stamps were denominated with the amounts issued in dollars and cents .
S2: The Canadian stamps were issued with amounts in dollars and cents .

Do S1 & S2 convey the same information?

A: no

Problem: S1: Estimates of correlations between variables are weakened by measurement errors ( diluted ) .
S2: Estimates of correlations between variables are weakened ( diluted ) by measurement error .

Do S1 & S2 convey the same information?

A:
yes