 F Si
   1.0
     5.4622584700000001    0.0000000000000000    0.0000000000000000
     0.0000000000000000    5.4622584700000001    0.0000000000000000
     0.0000000000000000    0.0000000000000000    5.4622584700000001
 F Si
   8   2
Direct
   0.6666438000000000  0.3333562000000000  0.6666438000000000
   0.8333562000000000  0.1666438000000000  0.1666438000000000
   0.6666438000000000  0.6666438000000000  0.3333562000000000
   0.3333562000000000  0.3333562000000000  0.3333562000000000
   0.1666438000000000  0.8333562000000000  0.1666438000000000
   0.3333562000000000  0.6666438000000000  0.6666438000000000
   0.1666438000000000  0.1666438000000000  0.8333562000000000
   0.8333562000000000  0.8333562000000000  0.8333562000000000
   0.0000000000000000  0.0000000000000000  0.0000000000000000
   0.5000000000000000  0.5000000000000000  0.5000000000000000