 F Rb Yb
   1.0
     4.3568672399999997    0.0000000000000000    0.0000000000000000
     0.0000000000000000    4.3568672399999997    0.0000000000000000
     0.0000000000000000    0.0000000000000000    4.3568672399999997
 F Rb Yb
   3   1   1
Direct
   0.0000000000000000  0.5000000000000000  0.5000000000000000
   0.5000000000000000  0.0000000000000000  0.5000000000000000
   0.5000000000000000  0.5000000000000000  0.0000000000000000
   0.0000000000000000  0.0000000000000000  0.0000000000000000
   0.5000000000000000  0.5000000000000000  0.5000000000000000