7632
The calcium imaging technique was applied to investigate the effects of some title compounds on the intracellular calcium ion concentration ( [ Ca ( 2 + ) ] ( i ) ) , experimental results demonstrated that compound 6h stimulates a transient elevation in [ Ca ( 2 + ) ] ( i ) in the absence of external calcium after the central neurons dye loading with fluo - 3 AM .
 Chemical: calcium; Chemical: calcium; Chemical: Ca ( 2 + ); Chemical: Ca ( 2 + ); Chemical: calcium; Chemical: fluo - 3 AM
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: calcium, calcium, Ca ( 2 + ), Ca ( 2 + ), calcium, fluo - 3 AM 
Answer:
 Chemical: calcium; Chemical: calcium; Chemical: Ca ( 2 + ); Chemical: Ca ( 2 + ); Chemical: calcium; Chemical: fluo - 3 AM