At that time , Constantinople was the capital of the Byzantine Empire and the Patriarch of Constantinople was the most influential leader of the Church in the eastern Christian world .
At that time , Constantinople was the capital of the Eastern Christian Empire and the Patriarch of Constantinople was the most influential leader of the Church in the Byzantine world .

Are these two sentences paraphrases of each other?
no

During Lan Ling Wang 's absence , Han receives many visions of her past , mostly her happy moments with Bing Xin .
During Lan Ling Wang 's absence , Han receives multiple visions of her past , mostly her happy moments with Bing Xin .

Are these two sentences paraphrases of each other?
yes

Horner changed his mind when Cameron presented him with the song .
Cameron changed his mind when Horner presented the song to him .

Are these two sentences paraphrases of each other?
no

( EL successor Conrail sold the old New York main line through Utica , Chenango and Susquehanna Valley to the Cassville , Susquehanna and Western Railway in 1982 . )
( EL - Successor Conrail sold the old New York main route through Utica , Chenango , and Susquehanna Valley in 1982 to Cassville , Susquehanna , and Western Railway . )

Are these two sentences paraphrases of each other?
yes