newmtl mat23
  Kd 0.10 0.10 0.10

newmtl mat22
  Kd 0.62 0.62 0.62

newmtl mat15
  Kd 0.81 0.85 0.86

newmtl mat10
  Kd 0.30 0.69 0.31

newmtl mat13
  Kd 1.00 0.60 0.00

newmtl mat16
  Kd 0.47 0.56 0.61

newmtl mat8
  Kd 0.96 0.26 0.21