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": ""}
 Buttonbush swamp on floodplain. -_5T  Iridaceae [   dY! michigan  tF_ BERRIEN VIRGINICA ;mIk  var. M  41.834217 977,2   nK| 1340180   [STERILE, BUT VERSICOLR IS UNKNOWN IN THIS PART OF THE STATE].     (small) e.s. anderson +o-[P   0Av s.n.     Iris virginica var. shrevei  <nlTp -86.623722  Z 1919-07-30   6Wl IRIS  lO UNITED STATES WARREN WOODS. iFB   9y cecil billington   F shrevei  L asparagales
{"catalogNumber": "1340180", "order": "Asparagales", "family": "Iridaceae", "scientificName": "Iris virginica var. shrevei", "scientificNameAuthorship": "(Small) E.S. Anderson", "genus": "Iris", "subgenus": "", "specificEpithet": "virginica", "verbatimTaxonRank": "var.", "infraspecificEpithet": "shrevei", "identifiedBy": "", "recordedBy": "Cecil Billington", "recordNumber": "s.n.", "verbatimEventDate": "1919-07-30", "habitat": "Buttonbush swamp on floodplain.", "occurrenceRemarks": "[Sterile, but versicolor is unknown in this part of the state].", "associatedTaxa": "", "country": "United States", "stateProvince": "Michigan", "county": "Berrien", "municipality": "", "locality": "Warren Woods.", "decimalLatitude": "41.834217", "decimalLongitude": "-86.623722", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}