Descriptors for input variable

Descriptor for output variable wash time

Dirt

SD-small dirt

MD-medium dirt

LD-Large dirt

{SD, MD, LD}

Grease

NG-no grease

MG-medium grease

LG-large grease

{NG, MG, LG}

VS-very short

S-short

M-medium

L-large

VL-very large

{VS, S, M, L,VL}