side-peg is part of:
    80%  peg

side-peg contains:

Full expansion for side-peg:
   100%  1x2 Brick w/ Side Peg
   100%  2x2 Brick w/ Opposing Side Pegs
   100%  2x2 Brick w/ Side Peg
   100%  2x4 Brick w/ Opposing End Pegs
    80%  4x8 Brick w/ 4 Side Pegs