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": ""}
  R  UNITED STATES  1941-07-17 icM2      _j Michigan   on sand dunes u:l   Calamovilfa tPL~  hammond bay near oast guard station  [   1308395 I   POALES y8n    LONGIFOLIA     QmDG9 LEROY H. HARVEY  s: Poaceae  -84.12965 sJpau  (Hook6.) Scribn. :gP  
{"catalogNumber": "1308395", "order": "Poales", "family": "Poaceae", "scientificName": "", "scientificNameAuthorship": "(Hook.) Scribn.", "genus": "Calamovilfa", "subgenus": "", "specificEpithet": "longifolia", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "LeRoy H. Harvey", "recordNumber": "", "verbatimEventDate": "1941-07-17", "habitat": "on sand dunes", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Michigan", "county": "", "municipality": "", "locality": "Hammond Bay near Coast Guard Station", "decimalLatitude": "", "decimalLongitude": "-84.12965", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}