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": ""}
  R+L Indigofera  e*z O 18801 b. heyne ex roth &   Vz.WL WALTER N. KOEL2      OvE Fabales       tOg$Q DRY GROUND 1503693 E    oB  NO DATA Garhwa Road~ !?+     CORDIFOLIA  i^    4tCd India   m, indigofera cordifolia
{"catalogNumber": "1503693", "order": "Fabales", "family": "", "scientificName": "Indigofera cordifolia", "scientificNameAuthorship": "B. Heyne ex Roth", "genus": "Indigofera", "subgenus": "", "specificEpithet": "cordifolia", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Walter N. Koelz", "recordNumber": "18801", "verbatimEventDate": "", "habitat": "Dry ground", "occurrenceRemarks": "", "associatedTaxa": "", "country": "India", "stateProvince": "", "county": "no data", "municipality": "", "locality": "Garhwa Road", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}