Same meaning?
Plena was brought to Ponce by blacks who immigrated north from the English-speaking islands south of Puerto Rico .
Plena was brought to Ponce by blacks who had immigrated from the English-speaking islands south of Puerto Rico to the north .

Answer: yes

Same meaning?
With the weakening of the Canadian dollar , manufacturing sales and exports and employment increased in November and December 2015 .
In November and December 2015 , with the weakening in the Canadian dollar , manufacturing sales and exports rose and employment increased .

Answer: yes

Same meaning?
Cartesian '' L '' can be varied in the Lagrangian r coordinates , for '' N '' particles ,
The Lagrangian '' L '' can be varied in the Cartesian r coordinates , for '' N '' particles ,

Answer: no

Same meaning?
In 1858 he moved with a group of four members from Downieville to Eagle Valley in the area which today is known as Nevada .
In 1858 , he moved with a group of four members from Nevada to Downieville in the area that is now known as Eagle Valley .

Answer:
no