By then , three-quarters of the slaves in Maryland had been freed , and a high proportion of slaves in Delaware .
By then , three-quarters of the slaves had been liberated in Maryland , and a high proportion of slaves in Delaware .

Are these two sentences paraphrases of each other?
yes

Szabo 's method of double protection was , however , vulnerable to Sybil attacks .
Szabo 's method of sybilizing protection , however , was vulnerable to double attacks .

Are these two sentences paraphrases of each other?
no

Leonida 's mother was born Princess Valentine Wagner , a member of the same family as Princess Elisabeth Bagration .
Valentine Wagner Wagner 's mother was born Princess Elisabeth Bagration , a member of the same family as Princess Leonida .

Are these two sentences paraphrases of each other?
no

Under Ottoman rule , Avdella was in the kaza of Bitola , Sanjak of Serfice ( modern Servia ) , Vilayet of Monastir ( modern Grevena ) .
Under Ottoman rule Avdella was in the Kasa of Grevena , Sanjak of Serfice ( modern Servia ) , Vilayet of Monastir ( modern Bitola ) .

Are these two sentences paraphrases of each other?
no