Radicals ( Radical15) two strokes in Kanji;

dimensional, e.g.

left vs. right;

directional, e.g.

;

logical, e.g.

something horned;

numerological, e.g.

2;

structural, e.g.

2 strings are NOT parallel;

IFF zero Curvature surface, 2 Green Ones may begin; Also see: Monbusho level knowledge enhancement 1, idea ♯ 183, Green Ones;

Radicals;