2156
The structural study of peptides belonging to the terminal domains of histone H1 can be considered as a step toward the understanding of the function of H1 in chromatin .
 GENE: histone H1; GENE: H1
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: histone H1, H1 
Answer:
 GENE: histone H1; GENE: H1