f:Range/f:low
id: maximum cardinality of 'id' is 1
value: maximum cardinality of 'value' is 1
comparator: maximum cardinality of 'comparator' is 0
unit: maximum cardinality of 'unit' is 1
system: maximum cardinality of 'system' is 1
code: maximum cardinality of 'code' is 1
f:Range/f:high
id: maximum cardinality of 'id' is 1
value: maximum cardinality of 'value' is 1
comparator: maximum cardinality of 'comparator' is 0
unit: maximum cardinality of 'unit' is 1
system: maximum cardinality of 'system' is 1
code: maximum cardinality of 'code' is 1