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": ""}
  @  Open hillside  POPULUS BALSAMIFERA T      NEAR HURONTOWN. TEO  47.11021  q0,   0_e MALPIGHIALES populus /n9  J.E. Eckenwalder  0<W     United St4tes ND^o  L.F O  charles d. richards s:$A     IU4N$ balsamifera salicaceae  g  "tree 30 ft. tall." ?   VTf[  MICHIGAN  houghton s?     -88.57401 -SP  2272  . 
{"catalogNumber": "", "order": "Malpighiales", "family": "Salicaceae", "scientificName": "Populus balsamifera", "scientificNameAuthorship": "L.", "genus": "Populus", "subgenus": "", "specificEpithet": "balsamifera", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "J.E. Eckenwalder", "recordedBy": "Charles D. Richards", "recordNumber": "2272", "verbatimEventDate": "", "habitat": "Open hillside", "occurrenceRemarks": "\"tree 30 ft. tall.\"", "associatedTaxa": "", "country": "United States", "stateProvince": "Michigan", "county": "Houghton", "municipality": "", "locality": "Near Hurontown.", "decimalLatitude": "47.11021", "decimalLongitude": "-88.57401", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}