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": ""}
 ON MILFORD RD., 4 MI S.W. SALEM. rcS-V    v 1936-05-24  Yd carex  WASHTENnAW ?      CYPERACEAE 3bf4    w?C : laxiflora   H R@ michigan 1324174 v    ?A O -83.60694   Carex laxiflora K   !y  united states  Y~ 7405 42.35017 RvO&w   r8AV LAM.  H Rich elm-ash woods. 
{"catalogNumber": "1324174", "order": "", "family": "Cyperaceae", "scientificName": "Carex laxiflora", "scientificNameAuthorship": "Lam.", "genus": "Carex", "subgenus": "", "specificEpithet": "laxiflora", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "", "recordNumber": "7405", "verbatimEventDate": "1936-05-24", "habitat": "Rich elm-ash woods.", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Michigan", "county": "Washtenaw", "municipality": "", "locality": "On Milford Rd., 4 mi S.W. Salem.", "decimalLatitude": "42.35017", "decimalLongitude": "-83.60694", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}