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": ""}
 united states Ox    OPULIFOLIUS Z   pac=WT rosales   mta+( 4.403242    JOHN V. FREUDENSTEIN 1af      MICHIGAN ,Z   1983-06-30 0K)     1  -83.411213  rosaceae ^  along old us-23.      Yu (l.) mxim.
{"catalogNumber": "", "order": "Rosales", "family": "Rosaceae", "scientificName": "", "scientificNameAuthorship": "(L.) Maxim.", "genus": "", "subgenus": "", "specificEpithet": "opulifolius", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "John V. Freudenstein", "recordNumber": "", "verbatimEventDate": "1983-06-30", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Michigan", "county": "", "municipality": "", "locality": "along Old US-23.", "decimalLatitude": "44.403242", "decimalLongitude": "-83.411213", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}