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": ""}
  bwE^4 MISSOURI united states     %ZX&c H. EGGERT CONTACT UM HERBARIUM zR[      Gx AMARANTHUS RUDIS  LABEL: "IN MISSISSIPPI VALLEY"       RVDIS 1 a    amaranthus H=lS  caryophyllaes c^T      AMARANTHAC3AE Y*t     h 1207930 
{"catalogNumber": "1207930", "order": "Caryophyllales", "family": "Amaranthaceae", "scientificName": "Amaranthus rudis", "scientificNameAuthorship": "", "genus": "Amaranthus", "subgenus": "", "specificEpithet": "rudis", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "H. Eggert", "recordNumber": "", "verbatimEventDate": "", "habitat": "", "occurrenceRemarks": "Label: \"In Mississippi valley\"", "associatedTaxa": "", "country": "United States", "stateProvince": "Missouri", "county": "", "municipality": "", "locality": "Contact UM Herbarium", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}