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: Once the dog leader is with the subject , the dog is rewarded ( and released during training ) .
Once the dog leader is with the subject , the dog is released ( and rewarded during training ) .

SOLUTION: Not paraphrase

PROBLEM: The Chinese Ambassador to Lusaka is the official representative of the government in Beijing with the government of Zambia .
The Chinese Ambassador to Beijing is the official representative of the government in Lusaka with the government of Zambia .

SOLUTION: Not paraphrase

PROBLEM: Particularly dense erosion occurred in warmer melting periods during the ice ages , when the climate of the tundra prevailed and the soil was not protected by a strong vegetation .
Particularly strong erosion occurred in warmer melting periods during the ice ages , when the climate of the tundra reigned and the soil was not protected by a dense vegetation ceiling .

SOLUTION:
Not paraphrase