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": ""}
 unitedh states Av!kM       yB pd cbyperaceae  (&A 1950-07-28       MONROE n   G  P 1330849   eJf MUDBOG.   Malcolm E. McDonald |  PTE MOUILLEE STATE GAME AREA. =~   p  ELEOCHARIS PALUSTRIS  eleocharis /  henry k. svenson 8O   h?x   POALES
{"catalogNumber": "1330849", "order": "Poales", "family": "Cyperaceae", "scientificName": "Eleocharis palustris", "scientificNameAuthorship": "", "genus": "Eleocharis", "subgenus": "", "specificEpithet": "", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "Henry K. Svenson", "recordedBy": "Malcolm E. McDonald", "recordNumber": "", "verbatimEventDate": "1950-07-28", "habitat": "Mud bog.", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "", "county": "Monroe", "municipality": "", "locality": "Pte Mouillee State Game Area.", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}