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": ""}
  7 muehlenbergii  United States ?T^   S.N. )][sW   cecil billington [uL    1921-05-20 3z    quercus ?f   (+U michigan  n fagales 1356116 IL 0B   )@)mT engelm.  g+=C WARREN SAND DUNE.   |V42 41.917013  fagaceae       z^ QUERCUS MUEHLENBERGII  <T2Q3 -86.592522 
{"catalogNumber": "1356116", "order": "Fagales", "family": "Fagaceae", "scientificName": "Quercus muehlenbergii", "scientificNameAuthorship": "Engelm.", "genus": "Quercus", "subgenus": "", "specificEpithet": "muehlenbergii", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Cecil Billington", "recordNumber": "s.n.", "verbatimEventDate": "1921-05-20", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Michigan", "county": "", "municipality": "", "locality": "Warren Sand Dune.", "decimalLatitude": "41.917013", "decimalLongitude": "-86.592522", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}