22998
C - terminal heptad repeat ( CHR ) subsequently folds onto the hydrophobic grooves of the NHR coiled - coil to form a stable 6 - helix bundle , which juxtaposes the viral and cellular membranes for fusion .
 Chemical: C
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
 Entities: C 
Answer:
 Chemical: C