19985
This leads to more robust results from rigidity analyses and extends the application domain of rigidity analyses in that phase transition points ( " melting points " ) and unfolding nuclei ( " structural weak spots " ) are determined automatically .
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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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