newmtl mat22
  Kd 0.62 0.62 0.62

newmtl mat23
  Kd 0.10 0.10 0.10

newmtl mat21
  Kd 1.00 1.00 1.00

newmtl mat13
  Kd 1.00 0.60 0.00

newmtl mat12
  Kd 1.00 0.92 0.23

newmtl mat14
  Kd 1.00 0.34 0.13