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": ""}
  RvS RETUSA   ?tpf fabal3s crotalaria b      @ Y 1153440     =W#K Fabaceae L. Higgins *ib     ` Sandy soil, savannah and evergreen tropical forest   p 2543       
{"catalogNumber": "1153440", "order": "Fabales", "family": "Fabaceae", "scientificName": "", "scientificNameAuthorship": "", "genus": "Crotalaria", "subgenus": "", "specificEpithet": "retusa", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "L. Higgins", "recordNumber": "2543", "verbatimEventDate": "", "habitat": "Sandy soil, savannah and evergreen tropical forest", "occurrenceRemarks": "", "associatedTaxa": "", "country": "", "stateProvince": "", "county": "", "municipality": "", "locality": "", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}