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": ""}
 Swallen BW  guanajuato ??-   x Poales  D3@  0 cathestecu9m brevifolium var. brevifolium      b MEXICO  var. q       brevifolium _ z6    ;  254         sUM` 20.9083
{"catalogNumber": "", "order": "Poales", "family": "", "scientificName": "Cathestecum brevifolium var. brevifolium", "scientificNameAuthorship": "Swallen", "genus": "", "subgenus": "", "specificEpithet": "", "verbatimTaxonRank": "var.", "infraspecificEpithet": "brevifolium", "identifiedBy": "", "recordedBy": "", "recordNumber": "254", "verbatimEventDate": "", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "Mexico", "stateProvince": "Guanajuato", "county": "", "municipality": "", "locality": "", "decimalLatitude": "20.9083", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}