25462
It was proved that the controlling of culturing conditions and the modifying of fermentation medium conditions ( i . e . , carbon , nitrogen , mineral sources and vitamins ) can dramatically enhance the production of the EPS .
 Chemical: carbon; Chemical: nitrogen
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: carbon, nitrogen 
Answer:
 Chemical: carbon; Chemical: nitrogen