6992
23S rRNA ( guanosine2251-2 ' - O ) - methyltransferase ( , rlmB ( gene ) , yifH ( gene ) ) is an enzyme with system name S-adenosyl-L-methionine :23 S rRNA ( guanosine2251-2 ' - O - ) - methyltransferase .
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Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
Answer:
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