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": ""}
calvin h. kauffman nY+         yxR marshes, abundant   F!Oh. -86.10546 anton a. reznicek dW    [spikelets 1-flowered, wi7h naked rachilla] 3;9YG  PHRAGMITES AUSTRAnLIS SUBSP. AMERICNUS +    gv poaceae   v@:5f 1910-08-18 AM`ERICANUS Nt *  subsp. z   PHRAGMITES Nx  SALTONSTALL, P. M. PETERSON & SORENG U  AUSTRALIS 33S   (q 7& michigan   :~k United States new richmond <p< 
{"catalogNumber": "", "order": "", "family": "Poaceae", "scientificName": "Phragmites australis subsp. americanus", "scientificNameAuthorship": "Saltonstall, P. M. Peterson & Soreng", "genus": "Phragmites", "subgenus": "", "specificEpithet": "australis", "verbatimTaxonRank": "subsp.", "infraspecificEpithet": "americanus", "identifiedBy": "Anton A. Reznicek", "recordedBy": "Calvin H. Kauffman", "recordNumber": "", "verbatimEventDate": "1910-08-18", "habitat": "Marshes, abundant", "occurrenceRemarks": "[Spikelets 1-flowered, with naked rachilla]", "associatedTaxa": "", "country": "United States", "stateProvince": "Michigan", "county": "", "municipality": "", "locality": "New Richmond", "decimalLatitude": "", "decimalLongitude": "-86.10546", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}