911
Among the few proteins of the eukaryotic nucleolus that have been characterized , four proteins , nucleolin , fibrillarin , SSB1 and NSR1 , possess a common structural motif , the GAR domain , which is rich in glycine and arginine residues .
 GENE: nucleolin; GENE: fibrillarin; GENE: SSB1; GENE: NSR1
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: nucleolin, fibrillarin, SSB1, NSR1 
Answer:
 GENE: nucleolin; GENE: fibrillarin; GENE: SSB1; GENE: NSR1