17701
With a high throughput , HFs and necklace - like HFs of graphene oxide have been well - controlled produced with the ease of functionalization and conversion to graphene HFs via simply thermal or chemical reduction .
 Chemical: graphene oxide; Chemical: graphene
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 oxide; Chemical: graphene