A same meaning or not problem:
Polymers of the coordination type are also stereoregular and can be isotactic or syndiotactic instead of atactic .
Polymers of the coordination type are also atactic and can be isotactic or syndiotactic instead of stereoregular .
****
[A]: no

A same meaning or not problem:
Walter Giffard was father of the Hugh who became Archbishop of York and Chancellor of England .
Hugh was father of Walter Giffard , the Archbishop of York and Chancellor of England .
****
[A]: no

A same meaning or not problem:
It is also convenient to sometimes define the purely covariant version by
It is also convenient , sometimes the purely covariant version by :
****
[A]: yes

A same meaning or not problem:
Sir Martin ( or Roger Martyn ) was Mercer and Lord Mayor of London in 1567 , and in 1559 also Sheriff of London .
Sir Roger Martyn ( or Martin ) was a mercer and Lord Mayor of London in 1567 ; he was also Sheriff of London in 1559 .
****
[A]:
yes