18945
The substrates , which exhibited non - fluorescence or weak fluorescence in solution phase , were smoothly hydrolyzed by beta - d - galactosidase from Aspergillus oryzae and yielded a water - insoluble strong fluorescent pigment .
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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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