Sir Roger Martyn ( or Martin ) was Mercer and Lord Mayor of London in 1567 , he was Sheriff of London in 1559 .
Sir Roger Martyn ( or Martin ) was a mercer and Lord Mayor of London in 1567 ; he was also Sheriff of London in 1559 .

Are these two sentences paraphrases of each other?
yes

Ammonia-based processes do not allow recovery of the pulp - chemicals because ammonia or ammonium salts are oxidized when burned to nitrogen and nitrogen oxides .
Ammonia-oxidized processes do not allow recovery of the pulping chemicals since ammonia or ammonium salts are based to nitrogen and nitrogen oxides when burned .

Are these two sentences paraphrases of each other?
no

His wife , Jean , daughter of Sir Jean Stewart , Baronet , and Duncan Campbell , were their children :
With his wife , Jean , daughter of Sir Duncan Campbell , Baronet , and Jean Stewart , their children were :

Are these two sentences paraphrases of each other?
no

Hindsholm was incorporated into the former Odense County while the bulk of the new province was merged with Tranekr County and renamed to Svendborg County .
Hindsholm was incorporated into the new Odense county , while the majority of the former province was merged with Tranekr County and was renamed to Svendborg County .

Are these two sentences paraphrases of each other?
no