16445
As a means of utilizing the self - assembled HNSs for targeting controlled drug delivery , folic acid ( FA ) and rhodamine 6G ( Rh6G ) were grafted onto compound 1 to yield the FA - Rh6G - 1 complex .
 Chemical: folic acid; Chemical: rhodamine 6G; Chemical: Rh6G; Chemical: FA - Rh6G - 1
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 Chemical: folic acid; Chemical: rhodamine 6G; Chemical: Rh6G; Chemical: FA - Rh6G - 1