21884
The initial reaction rates and the apparent Michaelis constants of the enzymatic reaction were obtained in the absence and presence of Al ( 3 + ) and nanometre - sized tridecameric aluminium polycationic ( nano - Al ( 13 ) ) species .
 Chemical: Al ( 3 + ); Chemical: tridecameric aluminium; Chemical: Al ( 13 )
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: Al ( 3 + ), tridecameric aluminium, Al ( 13 ) 
Answer:
 Chemical: Al ( 3 + ); Chemical: tridecameric aluminium; Chemical: Al ( 13 )