You will be given a definition of a task first, then some input of the task.
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.

If all are zero , then this is the quantum - Liouville - equation ( for a closed system ) , which is the quantum analogue of the classic Liouville equation .
If the are all zero , then this is quantum Liouville equation ( for a closed system ) , which is the quantum analog of the classical Liouville equation .
Output:
Paraphrase