Relation pm#Higgins_annotation_property (?,?)
  supertype:  Higgins_property
  subtype:  base (?,?)
  subtype:  fractionDigits (?,?)
  subtype:  length (?,?)
  subtype:  maxExclusive__maxexclusive (?,?)
  subtype:  maxInclusive__maxinclusive (?,?)
  subtype:  maxLength__maxlength (?,?)
  subtype:  minExclusive__minexclusive (?,?)
  subtype:  minInclusive__mininclusive (?,?)
  subtype:  minLength__minlength (?,?)
  subtype:  pattern (?,?)
  subtype:  totalDigits (?,?)