18863
Exfoliation of the hybrid material in organic solvents such as THF and chloroform yields sheet - and belt - like nanostructures with lateral sizes between 10 ' s and 100 ' s of nanometers and a height of about 10 nm measured by AFM , which precisely maps the basal spacing of the lamellar mesostructure ; further exfoliation results in nanobelts with minimum sizes around 4 nm .
 Chemical: THF; Chemical: chloroform
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: THF; Chemical: chloroform