3884
Tight - binding band structure calculations for beta - MNX ( M = Zr , X = Cl , Br ; M = Hf , X = Cl ) , ZrCl , and Y ( 2 ) C ( 2 ) Br ( 2 ) are reported .
 None
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: GENE 
Text: {0} 
Answer:
 None