17984
Chemically converted graphene aerogels with ultralight density and high compressibility are prepared by diamine - mediated functionalization and assembly , followed by microwave irradiation .
 Chemical: graphene; Chemical: diamine
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: graphene; Chemical: diamine