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": ""}
   :8 MICHIGAN angustifolia qbxc  Claude E. Garton r*BC   ia 0 1974-05-23 THICKETS. [CLOSE TO PRUNUS ANGUSTIFOLIA BUT FAR NORTH OF RANGE. NOT P. CERASIFERA. J. ROHRER, UNIV OF WISC. -EAUCLAIRE 2002]. G D^     ]7(B$ prunus    +>D30 fence row in sandy soil  z: 15853    united states R            8h leelanau
{"catalogNumber": "", "order": "", "family": "", "scientificName": "", "scientificNameAuthorship": "", "genus": "Prunus", "subgenus": "", "specificEpithet": "angustifolia", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Claude E. Garton", "recordNumber": "15853", "verbatimEventDate": "1974-05-23", "habitat": "Fence row in sandy soil", "occurrenceRemarks": "Thickets. [Close to Prunus angustifolia but far north of range. Not P. cerasifera. J. Rohrer, Univ of Wisc. -EauClaire 2002].", "associatedTaxa": "", "country": "United States", "stateProvince": "Michigan", "county": "Leelanau", "municipality": "", "locality": "", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}