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": ""}
    ? s.n.   Dl united states  bignonia cL+    .M lamiales  1874-03-24 V  BIGNONIACEAE Ut3x  Louisiama 0i-      m 1540506 NOT PRESENT  Zgm   q/ BIGNONIA CAPREOLATA   o east baton rouge  capreolata ,dT6     2N L.  
{"catalogNumber": "1540506", "order": "Lamiales", "family": "Bignoniaceae", "scientificName": "Bignonia capreolata", "scientificNameAuthorship": "L.", "genus": "Bignonia", "subgenus": "", "specificEpithet": "capreolata", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "not present", "recordNumber": "s.n.", "verbatimEventDate": "1874-03-24", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Louisiana", "county": "East Baton Rouge", "municipality": "", "locality": "", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}