With this steganographic process , high-quality copies of an original ( e.g . a bank note ) under blue light have become identifiable .
With this high process , steganographic copies of an original ( e.g . a note ) have become identifiable under blue light .

Are these two sentences paraphrases of each other?
no

The neighbourhood became part of the township of North York , which then became a city and then a city and was later incorporated into the city of Toronto .
The neighbourhood became part of the Township of North York , which then became a borough and then a city and was later incorporated into the city of Toronto .

Are these two sentences paraphrases of each other?
yes

On February 6 , 2014 , Spencer Machacek was traded by the Penguins to the Columbus Blue Jackets in exchange for Thompson .
On 6 February 2014 , Spencer Machacek was traded by the penguins to the Columbus Blue Jackets in exchange for Thompson .

Are these two sentences paraphrases of each other?
yes

Santander Department is a town and municipality in northeastern Colombia in Albania .
Albania is a town and municipality in the department of Santander in northeastern Colombia .

Are these two sentences paraphrases of each other?
no