Problem: S1: The Finsch monitor was known only from Blanche Bay , Ralum and New Britain in Massawa .
S2: The Finsch monitor was only known from Blanche Bay , Ralum and Massawa in New Britain .

Do S1 & S2 convey the same information?

A: no

Problem: S1: The free tetracubes from two complete sets of corresponding tetrominos can also fit into 2 4 5 and 2 2 10 boxes .
S2: The free tetracubes from two complete sets of corresponding tetrominoes can also fit in 2 4 5 and 2 2 10 boxes .

Do S1 & S2 convey the same information?

A: yes

Problem: S1: None of the Russian-Polish treaties concerning Kiev has ever been ratified .
S2: None of the Russian-Polish treaties concerning Kiev have ever been ratified .

Do S1 & S2 convey the same information?

A:
yes