Montgomery County is part of the Blacksburg -- Christiansburg -- Radford , VA Metropolitan Statistical Area .
Montgomery County is part of the Metropolitan Statistical Area Blacksburg -- Christiansburg -- Christiansburg -- Radford , VA .

Are these two sentences paraphrases of each other?
yes

Extremal states are usually called extremal states . Note that a condition is a pure state if and only if it is convex in the pure state group .
Extremal states are usually called pure states . Note that a state is a pure state if and only if it is extremal in the convex set of states .

Are these two sentences paraphrases of each other?
no

Specific light wavelengths contained in the quantized light from stars can be separated and referred to the observed transitions in free gas atoms .
Specific light wavelengths contained in the quantized light from stars can be separated out and related to the observed transitions in free gas atoms .

Are these two sentences paraphrases of each other?
yes

The administrative district of the same name ( '' spravni obvod '' ) consists of the Prague 14 and Dolni Pocernice districts .
The district of the same name ( '' spravni obvod '' ) consists of the administrative districts of Prague 14 and Dolni Pocernice .

Are these two sentences paraphrases of each other?
no