5565
This process is accelerated by the action of " Acidithiobacillus " bacteria which oxidize pyrite to produce ferrous iron , sulfate , and protons ( ) .
 location: Acidithiobacillus
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 location: Acidithiobacillus