24549
We also demonstrated that miR - 193a - 3p induces the accumulation of intracellular reactive oxygen species ( ROS ) and DNA damage as determined by the level of gamma H2AX and by performing the comet assay .
 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: oxygen 
Answer:
 Chemical: oxygen