quarter-octagonal is part of:
    25%  octagonal

quarter-octagonal contains:

Full expansion for quarter-octagonal:
   100%  3x3 Quarter-Octagonal Plate
   100%  3x3x6 Qtr-Oct. Castle Wall w/ Bricks
   100%  3x3x6 Quarter-Octagonal Castle Wall
   100%  6x6 Quarter-Octagonal Plate
   100%  6x6x6 Qtr-Oct. Castle Wall w/ Window
   100%  7x7x2.3 Qtr-Octagonal Castle Turret
    80%  10x10 Quarter-Open-Octagonal Plate