{"-- imperial measures used in the US. http://en.wikipedia.org/wiki/United_States_customary_units --": 0,
"-- length --": 0,
"inch": 2,
"foot": 2,
"yard": 2,
"mile": 2,

"league": 1,

"-- area --": 0,

"inch²": 2,
"foot²": 2,
"acre": 2,

"-- volume --": 0,
"inch³": 2,
"foot³": 2,
"yard³": 2,

"-- fluid volume --": 0,
"teaspoon": 2,
"tablespoon": 2,
"fluidounce": 2,
"cup": 2,
"pint": 2,
"quart": 2,
"gallon": 2,

"-- mass --": 0,
"ton": 2,
"pound": 2,
"ounce": 2,

"dollar": 2,
"US$": 2,

"horsepower": 1,

"--": 0
}
