TASK DEFINITION: In this task you are given a sentence pair from wikipedia that have high lexical overlap. If the sentences have the same meaning and are just paraphrases of each other label them as "Paraphrase" , if not label them as "Not paraphrase". The two sentences are seperated by a new line.
PROBLEM: But these are physical representations of the corresponding mathematical entities ; the line and the curve are idealized concepts whose width is 0 ( see Line ) .
These are idealized representations of the corresponding mathematical entities , the line and the curve are physical concepts whose width is 0 ( see line ) .

SOLUTION: Not paraphrase

PROBLEM: The book collects fourteen short stories , nineteen essays and two plays by the author , including two of his Jorkens stories , with an introductory foreword by Schweitzer .
The book collects fourteen short stories , nineteen essays and two plays by the author , including two of his Jorkens - stories , with an introductory preface by Schweitzer .

SOLUTION: Paraphrase

PROBLEM: Heliair will always have more than 21 % oxygen , and will be hypoxic ( less than 17 % oxygen ) for mixes with less than 20 % helium .
Heliair will have less than 21 % oxygen and will be hypoxic ( less than 17 % oxygen ) for mixtures with more than 20 % helium .

SOLUTION:
Not paraphrase