When he was replaced by Plettner in 1981 , Karlheinz Kaske became the first chairman of the supervisory board not to be a member of the Siemens family .
In 1981 , when he succeeded Karlheinz Kaske , Plettner became the first Chairman of the Supervisory Board who was not a member of the Siemens family .

Are these two sentences paraphrases of each other?
no

A total lunar eclipse took place on 13 April 1968 , the first of two total darknesses in 1968 , and the second on 6 October .
A total eclipse took place on April 13 , 1968 , the second of two total lunar eclipses in 1968 , the first being on October 6 .

Are these two sentences paraphrases of each other?
no

According to the United States Census Bureau , Harmony Township has a total area of which land is and , or 5.21 % , is water .
According to the United States Census Bureau , Harmony Township is a total area of , of which is land and , or 5.21 % , has water .

Are these two sentences paraphrases of each other?
yes

Mackenzie is a writer at the 2B Theatre in Montreal and teaches at the National Theatre School of Canada in Halifax .
Mackenzie is a writer-in-residence at the 2B Theatre in Montreal and teaches at the National Theatre School of Canada in Halifax .

Are these two sentences paraphrases of each other?
yes