Simon Mathews ( * 1755 ) was a Welsh immigrant who , in 1712 , came to Pennsylvania with his cousin Simon Butler .
Simon Butler ( d. 1755 ) was a Welsh immigrant who came to Pennsylvania in 1712 with his cousin Simon Mathews .

Are these two sentences paraphrases of each other?
no

In 1975 , the then Alan Rees Eleri Morgan was married .
In 1975 , the then Alan Rees married Eleri Morgan .

Are these two sentences paraphrases of each other?
yes

The heart is opened and the ventricular septal defect is closed with a patch .
The heart is opened and the ventricular septum defect is closed with a patch .

Are these two sentences paraphrases of each other?
yes

The building on the north side of the field previously followed by Emivest Aerospace Corp . Owned and operated by Sino Swearingen Aircraft Corp. Is now owned by Acer Tech .
The building on the north side of the field , previously owned by Sino Swearingen Aircraft Corp. , followed by the Emivest Aerospace Corp. , is now owned and operated by Acer Tech .

Are these two sentences paraphrases of each other?
no