Online , there were a number of Advanced Chess tournaments worldwide , Freestyle Chess Tournaments defined by Centaur ( Centaur = human player + computer ) .
There have been , online , a number of Advanced Chess tournaments worldwide , defined Freestyle Chess Tournaments by Centaur ( Centaur = human player + computer ) .

Are these two sentences paraphrases of each other?
yes

The predominant sector , with a secondary occupation of the building , employs 33 % of workers .
The predominant sector , with a secondary occupation of the building , employs 33 % of the workers .

Are these two sentences paraphrases of each other?
yes

The Armenian national liberation movement was exhausted by six years of wars and conflicts , the Armenian army and population were not capable of any further active resistance .
The Armenian national liberation movement was exhausted by the six years of permanent wars and conflicts ; the Armenian army and population were incapable of any further active resistance .

Are these two sentences paraphrases of each other?
yes

In 2015 , SpikeTV announced George X and Manny Rodriguez as the SAP Spanish commentators for Premier Boxing Champions on Spike TV .
In 2015 , SpikeTV George X and Manny Rodriguez announced themselves as SAP Spanish commentators for Premier Boxing Champions at Spike TV .

Are these two sentences paraphrases of each other?
no