14574
This modification improves the COSMO - RS estimate of ambient vapor pressure by more than 1 order of magnitude for a range of nitrogen - rich explosives and their derivatives , bringing the theoretical predictions to within typical experimental error bars for vapor pressure measurements .
 Chemical: nitrogen
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 Chemical: nitrogen