11078
Nitrogen sorption , small angle X - ray diffraction ( XRD ) , and transmission electron microscopy ( TEM ) reveals that BOMCs possess highly ordered mesoporous structure , uniform pore size distribution , and high surface area .
 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