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": ""}
 y, Thakur Rup Chand EXCAVATA (=     TCW1 clausena excavata    ey india  1504717  i2      t burm.f.  C  # 762  Ib s 1950-03-23 Tura ~8    b+#! clausena   k west garo hills SAPINDALES yP [Q   1  2940     RUTACEAE IH; 
{"catalogNumber": "1504717", "order": "Sapindales", "family": "Rutaceae", "scientificName": "Clausena excavata", "scientificNameAuthorship": "Burm.f.", "genus": "Clausena", "subgenus": "", "specificEpithet": "excavata", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Thakur Rup Chand", "recordNumber": "2940", "verbatimEventDate": "1950-03-23", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "India", "stateProvince": "", "county": "West Garo Hills", "municipality": "", "locality": "Tura", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "762", "maximumElevationInMeters": ""}