8010
Copolymers containing moieties of similar pi - electron donating and / or accepting capabilities , e . g . , thiophene ( T ) - methoxythiophene ( OT ) , exhibit a linear dependence of electronic properties ( especially , HOMO / LUMO , band gap , and bandwidth ) on the D / A content .
 Chemical: thiophene; Chemical: methoxythiophene
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: thiophene; Chemical: methoxythiophene