Refactor the unstructured text into a valid JSON dictionary. The key names follow the Darwin Core Archive Standard. If a key lacks content, then insert an empty string. Fill in the following JSON structure as required: {"catalogNumber": "", "order": "", "family": "", "scientificName": "", "scientificNameAuthorship": "", "genus": "", "subgenus": "", "specificEpithet": "", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "", "recordNumber": "", "verbatimEventDate": "", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "", "stateProvince": "", "county": "", "municipality": "", "locality": "", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}
    2+Xf geraniaceae      -8.721919  j ann arbor; nichols arbretum.      VR_ L.      Y` s.n.     1926-05-20 Z    H _z] MACULATUM  ANTON A. REZNICEK 4  
{"catalogNumber": "", "order": "", "family": "Geraniaceae", "scientificName": "", "scientificNameAuthorship": "L.", "genus": "", "subgenus": "", "specificEpithet": "maculatum", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "Anton A. Reznicek", "recordedBy": "", "recordNumber": "s.n.", "verbatimEventDate": "1926-05-20", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "", "stateProvince": "", "county": "", "municipality": "", "locality": "Ann Arbor; Nichols Arboretum.", "decimalLatitude": "", "decimalLongitude": "-83.721919", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}