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": ""}
    1246781   r common, at edge of small chamaedaphne bog   l.     f>U~ "shrub ca. 2 9m. tall"  7 UNITED STATES    P mackinac  C4SSINOIDES L+   dm 1954-08-10  @R edward g. voss     n VIBURNUM CASSINOIDES    xhr 2442  ~  ca. 1/2 mi. s of ozark (sec. 7, t43n, r5w).  
{"catalogNumber": "1246781", "order": "", "family": "", "scientificName": "Viburnum cassinoides", "scientificNameAuthorship": "L.", "genus": "", "subgenus": "", "specificEpithet": "cassinoides", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Edward G. Voss", "recordNumber": "2442", "verbatimEventDate": "1954-08-10", "habitat": "Common, at edge of small Chamaedaphne bog", "occurrenceRemarks": "\"shrub ca. 2 m. tall\"", "associatedTaxa": "", "country": "United States", "stateProvince": "", "county": "Mackinac", "municipality": "", "locality": "ca. 1/2 mi. S of Ozark (sec. 7, T43N, R5W).", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}