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": ""}
 _ Crotalaria   z thakur rup chand  CROTALARIA c  Fabaceae c&o  L !EN    HBjj assam      KAMRUP    2534 R      1503289 :=   1949-12-05x6   BAMANIGAON +K:   INDIA W  fabales  H+yX 
{"catalogNumber": "1503289", "order": "Fabales", "family": "Fabaceae", "scientificName": "Crotalaria", "scientificNameAuthorship": "L.", "genus": "Crotalaria", "subgenus": "", "specificEpithet": "", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Thakur Rup Chand", "recordNumber": "2534", "verbatimEventDate": "1949-12-05", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "India", "stateProvince": "Assam", "county": "Kamrup", "municipality": "", "locality": "Bamanigaon", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}