D4h_
D4h site symmetry is used to group species into genera
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family= 4 0 0 0
 
family= 4 0 0 0 new D4h genus #     1 with    24 species is 0:1:2:3
Nber of genera for this family=    1
 
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Nber families=      1
Nber genera=        1
Nber species=       24
