Mike Monroney was challenged in the Democratic primary by A.S. Thomas in 1950 .
Mike Monroney was challenged in 1950 by A.S. Thomas in the Democratic Prefix .

Are these two sentences paraphrases of each other?
yes

John Rzeznik is an ambassador of the Save the Music Foundation of VH1 , Robby Takac is the founder of Music is Art Foundation .
Robby Takac is an ambassador for VH1 's Save the Music Foundation . John Rzeznik is the founder of the Music is Art Foundation .

Are these two sentences paraphrases of each other?
no

The Muereasca River is a tributary of the Palaoaia River in Romania .
The river Palaoaia is a tributary of the Muereasca River in Romania .

Are these two sentences paraphrases of each other?
no

Grass Creek drains Grass Lake and flows north before it flows into Black Lake near Rossie , New York .
Grass Creek drains Grass Lake and flows north before emptying into Black Lake near Rossie , New York .

Are these two sentences paraphrases of each other?
yes