58675
This would have proven to be a good environment for " Cyanobacteria " to evolve the first photosynthetic metabolic pathways which gradually increased the oxygen portion of the atmosphere , changing it to what is known as an oxidizing atmosphere .
 biology: Cyanobacteria
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: media, plant, vehicle, astronomical object, time, disease, animal, location, person, organization, mythical figure, food, biology, geographical phenomenon, instrument, event 
Text: {0} 
 Entities: Cyanobacteria 
Answer:
 biology: Cyanobacteria