Problem: S1: Milton J. Kramer was the architect , and Herbert J. Krapp was the original owner .
S2: The architect was Milton J. Kramer and Herbert J. Krapp was the original owners .

Do S1 & S2 convey the same information?

A: yes

Problem: S1: Devnya is also the seat of the municipality of Devnya ( part of the province of Varna ) , which includes the following 2 villages :
S2: Varna Province is also the seat of Devnya municipality ( part of Devnya ) , which includes the following 2 villages :

Do S1 & S2 convey the same information?

A: no

Problem: S1: Their skin also secretes chemicals that are unpleasant , and sometimes poisonous , to predators .
S2: Their skin also secretes chemicals that are poisonous and sometimes harmful to predators .

Do S1 & S2 convey the same information?

A:
no