15087
NUCLEASE SENSOR TRIO : Fluorogenic DNA sensors were developed for distinct classes of nucleases : 3 ' - exonucleases , 5 ' - exonucleases , and endonucleases .
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Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
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