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": ""}
-84.78394 Zu  1559933 UrJ_7    l]p SALICACEAE       16.3 /EJ  Michx. k5   En?wO pellston plain research site. michigan $  malpighiales  TvAI   $L/ i BURTON V. BARNES   t D united states  Bex3[ CLON E 42, MALE, SAMPLE TREE 3.  45.55279 t]h     mMM  tremuloides  Populus tremuloides #j  EMMET = G` 
{"catalogNumber": "1559933", "order": "Malpighiales", "family": "Salicaceae", "scientificName": "Populus tremuloides", "scientificNameAuthorship": "Michx.", "genus": "", "subgenus": "", "specificEpithet": "tremuloides", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Burton V. Barnes", "recordNumber": "16.3", "verbatimEventDate": "", "habitat": "", "occurrenceRemarks": "Clone 42, male, sample tree 3.", "associatedTaxa": "", "country": "United States", "stateProvince": "Michigan", "county": "Emmet", "municipality": "", "locality": "Pellston Plain Research Site.", "decimalLatitude": "45.55279", "decimalLongitude": "-84.78394", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}