Problem: (1) A closely related area is the examination of combinatorial Markov chains , especially on finite objects .
(2) A closely related area is the study of combinatorial Markov chains , especially on finite objects .

Do (1) and (2) mean the same thing?
A: yes

Problem: (1) On 24 May 2017 , Lajunen signed a 1-year contract with HC Spartak Moscow from KHL .
(2) On 24 May 2017 , Lajunen signed a 1-year contract with KHL from HC Spartak Moscow .

Do (1) and (2) mean the same thing?
A: no

Problem: (1) RAF Ash was closed and the site sold in July 1998 . It is now used as a secure server farm by The Bunker , an Internet hosting company .
(2) RAF Ash was sold and the site was closed in July 1998 and is now being used by The Bunker , an Internet hosting company , as a secure server farm .

Do (1) and (2) mean the same thing?
A: no

Problem: (1) Robert Wilson was born on June 24 , 1766 in Newcastle , George Wilson , a shipbuilder , and Mary Finlay .
(2) George Wilson was born on June 24 , 1766 in Newcastle , Robert Wilson , a shipbuilder and Mary Finlay .

Do (1) and (2) mean the same thing?
A:
no