Ryszard Kaczorowski accepted symbols of the pre-war presidency from Lech Waesa .
Ryszard Kaczorowski received symbols from Lech Waesa of the pre-war presidency .

Are these two sentences paraphrases of each other?
yes

Top Gear Hyper Bike is a motorcycle racing game for the Nintendo 64 , developed by Snowblind Studios and published by Kemco .
Hyper Bike is a motorbike racing game for the Nintendo 64 , developed by Kemco and published by Snowblind Studios .

Are these two sentences paraphrases of each other?
no

The River Stroe is a tributary of the River Nechitu in Romania .
The Stroe River is a tributary of the Nechitu River in Romania .

Are these two sentences paraphrases of each other?
yes

At the age of nine , he appeared in his first concert and since then he has appeared alone or with his aunt and uncle in all parts of France .
Garcia performed in his first concert at the age of nine , and since then he appeared alone or with his aunt and uncle in all parts of France .

Are these two sentences paraphrases of each other?
yes