Problem: S1: In these cells , a voltage is induced which is electronically captured .
S2: A voltage is induced in these cells , which is registered electronically .

Do S1 & S2 convey the same information?

A: yes

Problem: S1: When Russ asked him to play guitar in the new band , Aaron agreed to .
S2: When Aaron asked him to play guitar in the new band , Russ agreed .

Do S1 & S2 convey the same information?

A: no

Problem: S1: Sometimes , small mammals , including bats , are caught , but insects are only very seldom eaten .
S2: Sometimes , small mammals , including bats , are eaten , but very rarely are insects caught .

Do S1 & S2 convey the same information?

A:
no