17044
These Re complexes were designed and synthesized via the integrated approach , so their ( 99m ) Tc analogs would have a greater chance of crossing the blood - brain barrier .
 Chemical: Re; Chemical: ( 99m ) Tc
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: Re, ( 99m ) Tc 
Answer:
 Chemical: Re; Chemical: ( 99m ) Tc