13280
Structure prediction of binary pernitride MN2 compounds ( M = Ca , Sr , Ba , La , and Ti ) .
 Chemical: pernitride; Chemical: MN2; Chemical: Ca; Chemical: Sr; Chemical: Ba; Chemical: La; Chemical: Ti
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: pernitride; Chemical: MN2; Chemical: Ca; Chemical: Sr; Chemical: Ba; Chemical: La; Chemical: Ti