For more information about phitypes :
http://wikisocion.org/en/index.php?t...del_%CE%A6
Reminder (enneagram -> Model Phi) :
468 = S- ; 135 = S0 ; 279 = S+
Preservational = N- ; Social = N0 ; Intimate = N+
459 = D- ; 126 = D0 ; 378 = D+
If SND letters omitted, variables are respectively S, N, and D, from left to right.