13579
This paper reports the experimental and theoretical investigations of two trigonal bipyramidal Ni ( II ) complexes , [ Ni ( Me ( 6 ) tren ) Cl ] ( ClO ( 4 ) ) ( 1 ) and [ Ni ( Me ( 6 ) tren ) Br ] ( Br ) ( 2 ) .
 Chemical: trigonal bipyramidal Ni ( II ); Chemical: [ Ni ( Me ( 6 ) tren ) Cl ] ( ClO ( 4 ) ); Chemical: [ Ni ( Me ( 6 ) tren ) Br ] ( Br )
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: trigonal bipyramidal Ni ( II ), [ Ni ( Me ( 6 ) tren ) Cl ] ( ClO ( 4 ) ), [ Ni ( Me ( 6 ) tren ) Br ] ( Br ) 
Answer:
 Chemical: trigonal bipyramidal Ni ( II ); Chemical: [ Ni ( Me ( 6 ) tren ) Cl ] ( ClO ( 4 ) ); Chemical: [ Ni ( Me ( 6 ) tren ) Br ] ( Br )