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In this study , transcriptional fusions were constructed between the xcpP and xcpR genes and the lacZ reporter .
 GENE: xcpP; GENE: xcpR genes; GENE: lacZ reporter
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: GENE 
Text: {0} 
Answer:
 GENE: xcpP; GENE: xcpR genes; GENE: lacZ reporter