8492
Influence of carboxylic acid functionalities in ruthenium ( II ) polypyridyl complexes on DNA binding , cytotoxicity and antioxidant activity : synthesis , structure and in vitro anticancer activity .
 Chemical: carboxylic acid; Chemical: ruthenium ( II ) polypyridyl complexes
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: carboxylic acid, ruthenium ( II ) polypyridyl complexes 
Answer:
 Chemical: carboxylic acid; Chemical: ruthenium ( II ) polypyridyl complexes