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": ""}
  Solanum E      6796      c0ntact um herbarium UN;~  chiapas H   1297431 M         Dennis E. Breedlove  r solanales  $cZ6u A RodrÃ­guez C.   nk6C MEXICO  E N NIGRICANS    
{"catalogNumber": "1297431", "order": "Solanales", "family": "", "scientificName": "", "scientificNameAuthorship": "", "genus": "Solanum", "subgenus": "", "specificEpithet": "nigricans", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "A Rodr\u00c3\u00adguez C.", "recordedBy": "Dennis E. Breedlove", "recordNumber": "6796", "verbatimEventDate": "", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "Mexico", "stateProvince": "Chiapas", "county": "", "municipality": "", "locality": "Contact UM Herbarium", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}