11564
NaMnGe ( 2 ) O ( 6 ) crystallizes into a monoclinic C2 / c structure with unit - cell parameters a = 9 . 859 ( 2 ) A , b = 8 . 7507 ( 18 ) A , c = 5 . 5724 ( 11 ) A , and beta = 105 . 64 ( 3 ) degrees at 153 K .
 Chemical: NaMnGe ( 2 ) O ( 6 )
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: NaMnGe ( 2 ) O ( 6 )