There are two types of Hilbert R - Trees : one for dynamic databases and one for static databases .
There are two types of Hilbert R-trees : one for static databases , and one for dynamic databases .

Are these two sentences paraphrases of each other?
yes

The tournament requires an import or a foreign-pure player for each team .
The tournament requires an import or player for each team .

Are these two sentences paraphrases of each other?
no

Portsmouth won 4 -- 1 , with goals from John Anderson , Cliff Parker and two by Bert Barlow .
Portsmouth won 4 -- 1 , with goals of Bert Barlow , John Anderson and two from Cliff Parker .

Are these two sentences paraphrases of each other?
no

The Radoteasa River or Radocheasa River is a tributary of the Carbunele River in Romania .
The Radoteasa or Radocheasa river is a tributary of the River Carbunele in Romania .

Are these two sentences paraphrases of each other?
yes