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": ""}
  pithecellobium x  El Salvador k  John M. Tucker G    1 Cb= contact um herbarium  Do pithecellobium keyense keyense 3   X?v8 fabales  1942-02-09 R1           E@p britton ex coker   1180545 >@* D  FABACEAE 0:a-i    
{"catalogNumber": "1180545", "order": "Fabales", "family": "Fabaceae", "scientificName": "Pithecellobium keyense", "scientificNameAuthorship": "Britton ex Coker", "genus": "Pithecellobium", "subgenus": "", "specificEpithet": "keyense", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "John M. Tucker", "recordNumber": "", "verbatimEventDate": "1942-02-09", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "El Salvador", "stateProvince": "", "county": "", "municipality": "", "locality": "Contact UM Herbarium", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}