15088
Also , accumulation of fluoride was associated with the inhibition of superoxide dismutase ( SOD ) activities and a dose - dependent stimulation of malondialdehyde ( MDA ) levels in the gill tissues , suggesting that fluoride promoted oxidative stress in the fish .
 Chemical: fluoride; Chemical: superoxide; Chemical: malondialdehyde; Chemical: MDA; Chemical: fluoride
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: fluoride, superoxide, malondialdehyde, MDA, fluoride 
Answer:
 Chemical: fluoride; Chemical: superoxide; Chemical: malondialdehyde; Chemical: MDA; Chemical: fluoride