"path","nationality","gender","age","income","id_no"
"|Alpha","","","","","","foo"
"|Alpha|Epsilon","","","","bar"
"|Alpha|Epsilon|Kappa","","","","",""
"|Alpha|Zeta","","","","",""
"|Alpha|Zeta|Lambda","","","","",""
"|Alpha|Zeta|Mu","","","","",""
"|Beta","","","","",""
"|Beta|Eta","","","","",""
"|Beta|Theta","","","","",""
"|Gamma","","","","",""
"|Gamma|Iota","","","","",""
"|Gamma|Iota|Nu","","","","",""
"|Delta","","","","",""