10818
Purple photosynthetic bacteria are capable of generating cellular energy from several sources , including photosynthesis , respiration , and H ( 2 ) oxidation .
 None
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: GENE 
Text: {0} 
 Entities:  
Answer:
 None