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Different concentrations of sodium pentaborate pentahydrate ( NaB ) were prepared for the analysis of cell toxicity and differentiation evaluations .
 Chemical: sodium pentaborate pentahydrate; Chemical: NaB
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 Chemical: sodium pentaborate pentahydrate; Chemical: NaB