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 NIGRESCENS k=^h    Contact UM Herbarium 5g$    ^% M. Martens & Galeotti 12974m08 W          Solanum Syy=>   c|oS MIGRESCENS Ignacio GarcÃ­a-Ruiz .    MEXICO d,wS   ] michoacan   k.!xD 1996-08-29  8f2< Solanales 
{"catalogNumber": "1297408", "order": "Solanales", "family": "", "scientificName": "Solanum nigrescens", "scientificNameAuthorship": "M. Martens & Galeotti", "genus": "Solanum", "subgenus": "", "specificEpithet": "nigrescens", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Ignacio Garc\u00c3\u00ada-Ruiz", "recordNumber": "", "verbatimEventDate": "1996-08-29", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "Mexico", "stateProvince": "Michoacan", "county": "", "municipality": "", "locality": "Contact UM Herbarium", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}