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": ""}
john h. ehlers N    [?! 540  LC S. Watson  *- Te pellston. near saw mill   1917-07-20  [   E efmmet   ACY -84.78394    SW MICHIGAN   >]2A9 UNITED STATES GRANDIS ]mC[   S edward g. voss    [d 1172648  hH glyceria grandis  ]&  MARSH poaceae oY     JXz glyceria  #k Dc 45.55279
{"catalogNumber": "1172648", "order": "", "family": "Poaceae", "scientificName": "Glyceria grandis", "scientificNameAuthorship": "S. Watson", "genus": "Glyceria", "subgenus": "", "specificEpithet": "grandis", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "Edward G. Voss", "recordedBy": "John H. Ehlers", "recordNumber": "540", "verbatimEventDate": "1917-07-20", "habitat": "marsh", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Michigan", "county": "Emmet", "municipality": "", "locality": "Pellston. near Saw Mill", "decimalLatitude": "45.55279", "decimalLongitude": "-84.78394", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}