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": ""}
   quadrangulata         OLEACEAE 8j_B    NO_sJFraxinus quadrangulata  t MICHX. agricultural college f8     #UNITED STATES   oGB 1895-05-06  0+ homer c. svkeels michigan Vos      INGHAM gp(g  FRAXINUS ^ 
{"catalogNumber": "", "order": "", "family": "Oleaceae", "scientificName": "Fraxinus quadrangulata", "scientificNameAuthorship": "Michx.", "genus": "Fraxinus", "subgenus": "", "specificEpithet": "quadrangulata", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Homer C. Skeels", "recordNumber": "", "verbatimEventDate": "1895-05-06", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Michigan", "county": "Ingham", "municipality": "", "locality": "Agricultural College", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}