defaults.json

{
    "relation-dimension-unit": {
        "market cap": ["currency","USD"],
        "population": ["count", "people"],
        "gdp": ["currency", "USD"],
        "calories": ["energy","calories"],
        "length": ["length","m"],
        "weight": ["mass","kg"],
        "occurred at": ["year","AD"],
        "emissions": ["",""],
        "area": ["area", "sq km"],
        "net worth": ["currency", "USD"],
        "revenue": ["currency", "USD"],
        "profits": ["currency", "USD"],
        "birth": ["year","AD"]
    },
    "dimension-units": {
        "currency": "USD",
        "energy": "joules",
        "length": "m",
        "mass": "kg",
        "year": "AD"
    },
    "relation-units": {
        "GDP": "USD",
        "Market Cap": "USD",
        "Revenue": "USD",
        "Birth": "AD",
        "Occurred": "AD",
        "Area": "sq km",
        "Age": "count",
        "Population": "count"
    },
    "relation-notations": {
        "Age": "year"
    },
    "relation-limits":{
        "Age": [0,150]
    },
    "unit-notations": {
        "count": "american",
        "USD": "american",
        "AD": "year",
        "BC": "american",
        "bytes": "metric",
        "watts": "metric",
        "%": "year",
        "per 1000": "year"
    },
    "unit-limits": {
        "BC": [1,1e21],
        "AD": [1,2100],
        "Bytes": [1,1e27],
        "USD": [1e3,1e15],
        "%": [1,100],
        "per 1000": [1,1000]
    }
}