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": ""}
    "Tree &12 m. tall; bark off-white, peeling." vz<*k      fagales z9`BZ   betula papyrifera T   HILLSDALE Jr^G  peter w. fritsch R/     s MARSHALL    1989-5-21 e      
{"catalogNumber": "", "order": "Fagales", "family": "", "scientificName": "Betula papyrifera", "scientificNameAuthorship": "Marshall", "genus": "", "subgenus": "", "specificEpithet": "", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Peter W. Fritsch", "recordNumber": "", "verbatimEventDate": "1989-05-21", "habitat": "", "occurrenceRemarks": "\"Tree 12 m. tall; bark off-white, peeling.\"", "associatedTaxa": "", "country": "", "stateProvince": "", "county": "Hillsdale", "municipality": "", "locality": "", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}