"Class"
"Alcohol"
"Malic acid"
"Ash"
"Alkalinity of ash"
"Magnesium"
"Total phenols"
"Flavanoids"
"Nonflavanoid phenols"
"Proanthocyanins"
"Color intensity"
"Hue"
"OD280/OD315 of diluted wines"
"Proline"