16794
Here we report the successful orientation in PVA of DNA oligonucleotide duplex hairpins with thread - intercalated binuclear complex [ mu - ( 11 , 11 ' - bidppz ) ( phen ) 4Ru2 ] ( 4 + ) , and how LD depends on oligonucleotide sequence and metal center chirality .
 Chemical: PVA; Chemical: [ mu - ( 11 , 11 ' - bidppz ) ( phen ) 4Ru2 ] ( 4 + )
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
 Entities: PVA, [ mu - ( 11 , 11 ' - bidppz ) ( phen ) 4Ru2 ] ( 4 + ) 
Answer:
 Chemical: PVA; Chemical: [ mu - ( 11 , 11 ' - bidppz ) ( phen ) 4Ru2 ] ( 4 + )