30574
The exotic C exhibits a nuclear halo , which means its radius is appreciably larger than would be expected if the nucleus were a sphere of constant density .
 location: C
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
 Entities: C 
Answer:
 location: C