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": ""}
 A Marshall ADOXACEAE 2- Ig   in dipsacales   B+$V 4497 viburnum trilobum L21m     DAMP THICKET Z@5   4Hnn Cockburn Island    c vW, TRILOBUM  ontario L    x  VIBURNUM   XYNjH Canada   1932-08-14 w_2   Walter N. Koelz M   T^ 1537079  
{"catalogNumber": "1537079", "order": "Dipsacales", "family": "Adoxaceae", "scientificName": "Viburnum trilobum", "scientificNameAuthorship": "Marshall", "genus": "Viburnum", "subgenus": "", "specificEpithet": "trilobum", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Walter N. Koelz", "recordNumber": "4497", "verbatimEventDate": "1932-08-14", "habitat": "Damp thicket", "occurrenceRemarks": "", "associatedTaxa": "", "country": "Canada", "stateProvince": "Ontario", "county": "", "municipality": "", "locality": "Cockburn Island", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}