6682
Although some residues are found reactive toward dimethylsulphate and kethoxal in regions predicted to be unpaired by the phylogenetic secondary structure model of 4 . 5S RNA , generally the reactivity is low , and some residues in internal loops are not reactive at all .
 GENE: 4 . 5S RNA
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: 4 . 5S RNA 
Answer:
 GENE: 4 . 5S RNA