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Mutational analysis of yeast CEG1 demonstrated that four of the five conserved motifs are essential for capping enzyme function in vivo .
 GENE: yeast CEG1; GENE: capping enzyme
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: yeast CEG1; GENE: capping enzyme