3108
The surface components , made of individual beta - cyclodextrin molecules , are the " hosts " for functional units , which may be used as imaging agents , for anti - cancer drug delivery , and as tumor - specific ligands .
 Chemical: beta - cyclodextrin
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: beta - cyclodextrin 
Answer:
 Chemical: beta - cyclodextrin