26058
Shedding light on the matter : Rhenium ( I ) indolato complexes with highly potent visible - light - triggered antiproliferative activity ( complex 1 : EC50 light = 0 . 1 mu M vs EC50 dark = 100 mu M ) in 2D - and 3D - organized cancer cells are reported and can be traced back to an efficient generation of singlet oxygen , causing rapid morphological changes and an induction of apoptosis .
 Chemical: Rhenium ( I ) indolato complexes; Chemical: oxygen
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: Rhenium ( I ) indolato complexes, oxygen 
Answer:
 Chemical: Rhenium ( I ) indolato complexes; Chemical: oxygen