Problem: S1: Soon the collector attacks Uncle Willy , who possesses the others .
S2: The Collector soon possesses Uncle Willy , who attacks the others .

Do S1 & S2 convey the same information?

A: no

Problem: S1: Jana Novotna and Jim Pugh were the defending champions but lost in the second round to Zina Garrison and Sherwood Stewart .
S2: The title defenders were Jana Novotna and Jim Pugh , but lost in the second round to Zina Garrison and Sherwood Stewart .

Do S1 & S2 convey the same information?

A: yes

Problem: S1: The river LA pua is a tributary of the Coruia River in Romania .
S2: The river Coruia is a tributary of the river LA pua in Romania .

Do S1 & S2 convey the same information?

A:
no