29444
The reactivity of fullerenes may change in time due to the oxidation and polymerization of fullerenes in an air atmosphere .
 Chemical: fullerenes; Chemical: fullerenes
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: fullerenes; Chemical: fullerenes