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": ""}
 R7 6791   -84.306278 1>n   ^F- 43.612087  1246759 PRk     viburnum cassinoides f    1930-06-10 |4    SC R.R. Dreisbach    1f5 United States michigan Lm       YTom  Viburnum 3 mi. w. of midland >  
{"catalogNumber": "1246759", "order": "", "family": "", "scientificName": "Viburnum cassinoides", "scientificNameAuthorship": "", "genus": "Viburnum", "subgenus": "", "specificEpithet": "", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "R.R. Dreisbach", "recordNumber": "6791", "verbatimEventDate": "1930-06-10", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Michigan", "county": "", "municipality": "", "locality": "3 mi. w. of Midland", "decimalLatitude": "43.612087", "decimalLongitude": "-84.306278", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}