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Here , we analyzed the interaction of CYT - 18 with a small RNA ( P4 - P6 RNA ) corresponding to the isolated P4 - P6 domain of the N . crassa mitochondrial large subunit ribosomal RNA intron .
 GENE: CYT - 18; GENE: P4 - P6 RNA; GENE: P4 - P6 domain; GENE: N . crassa mitochondrial large subunit ribosomal RNA intron
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: CYT - 18; GENE: P4 - P6 RNA; GENE: P4 - P6 domain; GENE: N . crassa mitochondrial large subunit ribosomal RNA intron