19364
Moreover , they point out that oxidation of Br ( - ) occurs within the electron pulse both by direct energy absorption and by scavenging of the water radical cation , H2O ( * + ) .
 Chemical: Br ( - ); Chemical: H2O ( * + )
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: Br ( - ), H2O ( * + ) 
Answer:
 Chemical: Br ( - ); Chemical: H2O ( * + )