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 ASPARAGACEAE      : 20.7203  x!4 r.w. cruen     z 1967-08t-10  echeandia flexuosa D   +0a CARLOS LUIS DÃ­AZ LUNA   flexuosa 6w   1143394 _WL      Mexico _<Z:C    ^B bosque de pinus oocarpa
{"catalogNumber": "1143394", "order": "", "family": "Asparagaceae", "scientificName": "Echeandia flexuosa", "scientificNameAuthorship": "", "genus": "", "subgenus": "", "specificEpithet": "flexuosa", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "R.W. Cruden", "recordedBy": "Carlos Luis D\u00c3\u00adaz Luna", "recordNumber": "", "verbatimEventDate": "1967-08-10", "habitat": "Bosque de Pinus oocarpa", "occurrenceRemarks": "", "associatedTaxa": "", "country": "Mexico", "stateProvince": "", "county": "", "municipality": "", "locality": "", "decimalLatitude": "20.7203", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}