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": ""}
  4Mq Ulmaceae   n(U s.n. Dexter Twp. Near Portage Lake. R   b^v  Samaras unusually ciliate. On WVD sheet, samaras scarecely ciliate!   , United States   Michigan =H    a >  muhl .       exWh rich woods.   yVh RUBRA    t.g < Ulmus  Washtenaw e   Ulmus rubra _ 
{"catalogNumber": "", "order": "", "family": "Ulmaceae", "scientificName": "Ulmus rubra", "scientificNameAuthorship": "Muhl.", "genus": "Ulmus", "subgenus": "", "specificEpithet": "rubra", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "", "recordNumber": "s.n.", "verbatimEventDate": "", "habitat": "Rich woods.", "occurrenceRemarks": "Samaras unusually ciliate. On WUD sheet, samaras scarecely ciliate!", "associatedTaxa": "", "country": "United States", "stateProvince": "Michigan", "county": "Washtenaw", "municipality": "", "locality": "Dexter Twp. Near Portage Lake.", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}