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": ""}
   MS Acer rubrum var. rubrum    -+ Charles K. Dodge  8`L^  rubrum   rubrum Pb6      michigan Kqk   acer AT3=R    WBg< near port huron     82.42491 n     p&ZS& s.n.
{"catalogNumber": "", "order": "", "family": "", "scientificName": "Acer rubrum var. rubrum", "scientificNameAuthorship": "", "genus": "Acer", "subgenus": "", "specificEpithet": "rubrum", "verbatimTaxonRank": "", "infraspecificEpithet": "rubrum", "identifiedBy": "", "recordedBy": "Charles K. Dodge", "recordNumber": "s.n.", "verbatimEventDate": "", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "", "stateProvince": "Michigan", "county": "", "municipality": "", "locality": "Near Port Huron", "decimalLatitude": "", "decimalLongitude": "-82.42491", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}