5349
The NR2 hybrid is a powerful tool for the mapping of new probes of this region , as well as for obtaining new informative probes specific for the deletion by subtractive cloning of the region .
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Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: GENE 
Text: {0} 
 Entities:  
Answer:
 None