A same meaning or not problem:
This new heavier isotope may be stable or unstable depending on the chemical element ( radioactive ) .
This heavier radioactive isotope may be new depending on the chemical element ( stable or unstable ) .
****
[A]: no

A same meaning or not problem:
The album was produced by Mike Leander and '' directed '' by Peter Sullivan and Reg Guest .
The album was produced by Peter Sullivan and was run by Mike Leander and Reg Guest '' .
****
[A]: no

A same meaning or not problem:
The physical topology defines how nodes in a network communicate over its logical topology .
The physical topology defines how nodes in a network communicate across its logical topology .
****
[A]: yes

A same meaning or not problem:
We sailed on the boat at the port of Ripa on the Tiber and embarked on .
We sailed on the boat at the port of Ripa on the Tiber and laid .
****
[A]:
yes