30422
Thus , ice crystallization followed by annealing at temperatures <= - 10 degrees C can be an effective strategy to prevent MHH formation .
 Chemical: MHH
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
 Entities: MHH 
Answer:
 Chemical: MHH