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": ""}
 Dtb@6 R.W. Cruden  -101.117     MEXICO ^!BB   flavescens XJ]  ECHEAMDIA  A    CHARCAS; CHARCAS Zu     =qFgF 23.1273  1143379 ,he   . Echeandia flavescens    y=7P (SCHULT. & SCHULT. F.) CRUDEN ASPARAGALES_ 5O     1934-07 Jp>4j   507 u -^n 
{"catalogNumber": "1143379", "order": "Asparagales", "family": "", "scientificName": "Echeandia flavescens", "scientificNameAuthorship": "(Schult. & Schult. f.) Cruden", "genus": "Echeandia", "subgenus": "", "specificEpithet": "flavescens", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "R.W. Cruden", "recordedBy": "", "recordNumber": "507", "verbatimEventDate": "1934-07", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "Mexico", "stateProvince": "", "county": "", "municipality": "", "locality": "Charcas; Charcas", "decimalLatitude": "23.1273", "decimalLongitude": "-101.117", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}