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": ""}
  1200543 PH5    Senecio  U   J.M. Line Um    X* RICHARDSON    QwvTk a%steraceae Ontario j   canada Q[K   Vmz senecio eremophilus  99-264 [t  asterales u      CONTACT UM HERBAR|UM %4   ] 1999-08-16 eremophilus 0s4Ga 
{"catalogNumber": "1200543", "order": "Asterales", "family": "Asteraceae", "scientificName": "Senecio eremophilus", "scientificNameAuthorship": "Richardson", "genus": "Senecio", "subgenus": "", "specificEpithet": "eremophilus", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "J.M. Line", "recordNumber": "99-264", "verbatimEventDate": "1999-08-16", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "Canada", "stateProvince": "Ontario", "county": "", "municipality": "", "locality": "Contact UM Herbarium", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}