He was known for his spiritual understanding and discipline , regardless of quick suffering .
Regardless of spiritual sorrow , he was known for his quick understanding and discipline .

Are these two sentences paraphrases of each other?
no

Relatively small , it had a circular , wooden wall and a strong gatehouse as well as watchtowers .
Relatively small , it had a round wooden wall and a strong gatehouse as well as watchtowers .

Are these two sentences paraphrases of each other?
yes

In 1923 Jacob Blaustein and his son Louis Blaustein sold a half interest in their American Oil Company to Pan American in exchange for a guaranteed supply of oil .
In 1923 , Louis Blaustein and his son , Jacob Blaustein , sold half of their American Oil Company to Pan American in exchange for a guaranteed oil supply .

Are these two sentences paraphrases of each other?
no

Smaller small cross circuit pylons may have two single arms on one side and one on the other .
Smaller small cross pylons may have two single arms on one side and one on the other .

Are these two sentences paraphrases of each other?
yes