6674
DNA methylation , especially of either one or both of the deoxyadenosines at the two GATC motifs ( one in the first exon and the other in the first intron of the rice CatA gene ) , appeared to be responsible for the CatA promoter activity identified in the transient assay .
 GENE: CatA gene; GENE: CatA promoter
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: GENE 
Text: {0} 
 Entities: CatA gene, CatA promoter 
Answer:
 GENE: CatA gene; GENE: CatA promoter