The term is sometimes used in exclusive reference to Guatemala and Mexico .
Sometimes the term is used in exclusive reference to Guatemala & Mexico .

Are these two sentences paraphrases of each other?
yes

The dam is operated by the United States Bureau of Reclamation , which has built it , and is owned by the Elephant Butte Irrigation District .
The dam is owned by the United States Bureau of Reclamation , which it has built , and is operated by the Elephant Butte Irrigation District .

Are these two sentences paraphrases of each other?
no

The journal is abstracted and indexed by EMBASE , Expanded Serial , Google Scholar , and Summon by Academic Solutions .
The magazine is abstracted and indexed by EMBASE , Expanded Serial , Google Scholar and Summon by Academic Solutions .

Are these two sentences paraphrases of each other?
yes

It was added as a digital download on April 6 , 2010 , and was released on Modern Rock radio in the United States on May 5 , 2010 .
It was released on April 6 , 2010 as a digital download and added to Modern Rock radio in the United States on May 5th , 2010 .

Are these two sentences paraphrases of each other?
no