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": ""}
  MARSHALL kiI   &,# frequent tree in mixed swamp forest FRAXINUS r+JTu  Oleaceae  $   N nigra near lake 29, sec. 29, t41n, Mr29w, ca. 9 mi. ne of iron mountain. >.qW   SS United States      /1] 1988-07-19    sm EDWARD G. VOSS      Z14 1174959    V[o 15955 "foliage from tree ca. 4" dbh; fruit from ground beneath." o-My*   
{"catalogNumber": "1174959", "order": "", "family": "Oleaceae", "scientificName": "", "scientificNameAuthorship": "Marshall", "genus": "Fraxinus", "subgenus": "", "specificEpithet": "nigra", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "Edward G. Voss", "recordedBy": "", "recordNumber": "15955", "verbatimEventDate": "1988-07-19", "habitat": "frequent tree in mixed swamp forest", "occurrenceRemarks": "\"Foliage from tree ca. 4\" dbh; fruit from ground beneath.\"", "associatedTaxa": "", "country": "United States", "stateProvince": "", "county": "", "municipality": "", "locality": "near Lake 29, sec. 29, T41N, R29W, ca. 9 mi. NE of Iron Mountain.", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}