18205
Since complexation of the ligated ODNs with hemin in the presence of K ( + ) showed strong soret band absorption and also catalyzed the H ( 2 ) O ( 2 ) - mediated oxidation of luminol , it appears that the quadruplex formed from ligated ODNs showed a function similar to native DNA quadruplex .
 Chemical: hemin; Chemical: K ( + ); Chemical: H ( 2 ) O ( 2 ); Chemical: luminol
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: hemin; Chemical: K ( + ); Chemical: H ( 2 ) O ( 2 ); Chemical: luminol