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Moreover , addition of water to a tetrahydrofuran ( THF ) solution of this compound leads to quenching of the yellow fluorescence owing to an increase in the solvent polarity .
 Chemical: tetrahydrofuran; Chemical: THF
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: tetrahydrofuran; Chemical: THF