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In this work moxifloxacin , a fourth - generation quinolone , with a broad spectrum of action , and its copper ternary complex ( metalloantibiotic ) have been study by fluorescence spectroscopy .
 moxifloxacin, quinolone, copper
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Chemical 
Text: {0} 
Answer:
 moxifloxacin, quinolone, copper