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From this library , LEU2 and HIS3 cDNAs were recovered at a frequency of about 1 in 10 ( 4 ) and in 12 out of 13 cases these were expressed in a galactose - dependent manner .
 GENE: LEU2; GENE: HIS3
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: LEU2; GENE: HIS3