A same meaning or not problem:
A closely related area is the examination of combinatorial Markov chains , especially on finite objects .
A closely related area is the study of combinatorial Markov chains , especially on finite objects .
****
[A]: yes

A same meaning or not problem:
It was premiered at the Borneo Eco Film Festival on September 30 , 2012 , for the first time it was shown in Borneo .
It was shown at the Borneo Eco Film Festival on September 30 , 2012 , when it was first premiered in Borneo .
****
[A]: no

A same meaning or not problem:
Her next convict voyage was under the command of Peter John Reeves and surgeon James Ellis .
Her next voyage was under the command of James Ellis and the surgeon Peter John Reeves .
****
[A]: no

A same meaning or not problem:
Rich food sources , as long as they are evaluated as profitable , will be applied for by the scouts when they return to the hive .
Rich food sources , as long as they are promoted as profitable , will be evaluated by the scouts when they return to the hives .
****
[A]:
no