Additional Metadata

additionalMetadata
        |___text '\n    '
        |___element 'metadata'
        |     |___text '\n      '
        |     |___element 'unitList'
        |     |     |___text '\n        '
        |     |     |___element 'unit'
        |     |     |     |  \___attribute 'id' = 'gram'
        |     |     |     |  \___attribute 'abbreviation' = 'g'
        |     |     |     |  \___attribute 'name' = 'gram'
        |     |     |     |  \___attribute 'parentSI' = 'kilogram'
        |     |     |     |  \___attribute 'unitType' = 'mass'
        |     |     |     |  \___attribute 'multiplierToSI' = '0.001'
        |     |     |     |___text '\n          '
        |     |     |     |___element 'description'
        |     |     |     |     |___text '0.001 kg'
        |     |     |     |___text '\n        '
        |     |     |___text '\n        '
        |     |     |___element 'unit'
        |     |     |        \___attribute 'id' = 'gramPerGram'
        |     |     |        \___attribute 'abbreviation' = 'g/g'
        |     |     |        \___attribute 'name' = 'gramPerGram'
        |     |     |        \___attribute 'unitType' = 'massPerMass'
        |     |     |___text '\n        '
        |     |     |___element 'unit'
        |     |     |     |  \___attribute 'id' = 'microgram'
        |     |     |     |  \___attribute 'abbreviation' = 'µg'
        |     |     |     |  \___attribute 'name' = 'microgram'
        |     |     |     |  \___attribute 'parentSI' = 'kilogram'
        |     |     |     |  \___attribute 'unitType' = 'mass'
        |     |     |     |  \___attribute 'multiplierToSI' = '0.000000001'
        |     |     |     |___text '\n          '
        |     |     |     |___element 'description'
        |     |     |     |     |___text '0.000000001 kg'
        |     |     |     |___text '\n        '
        |     |     |___text '\n        '
        |     |     |___element 'unit'
        |     |     |     |  \___attribute 'id' = 'number'
        |     |     |     |  \___attribute 'name' = 'number'
        |     |     |     |  \___attribute 'unitType' = 'dimensionless'
        |     |     |     |___text '\n          '
        |     |     |     |___element 'description'
        |     |     |     |     |___text 'a number'
        |     |     |     |___text '\n        '
        |     |     |___text '\n        '
        |     |     |___element 'unit'
        |     |     |     |  \___attribute 'id' = 'percent'
        |     |     |     |  \___attribute 'abbreviation' = '%'
        |     |     |     |  \___attribute 'name' = 'percent'
        |     |     |     |  \___attribute 'unitType' = 'dimensionless'
        |     |     |     |  \___attribute 'multiplierToSI' = '1'
        |     |     |     |___text '\n          '
        |     |     |     |___element 'description'
        |     |     |     |     |___text 'ratio of two quantities as percent composition (1:100)'
        |     |     |     |___text '\n        '
        |     |     |___text '\n      '
        |     |___text '\n    '
        |___text '\n  '