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 r      poales QF   S cheboygan (porter ex 4. gray) vasey MC          45.578783 i  EDWARD G. VOSS t%    riggsville corner 6|.     1188640  *Py%   < united- states 3440 (N?vS  -84.609909 G  Melca q  hardwoods 2nd growth [umbs] lf 
{"catalogNumber": "1188640", "order": "Poales", "family": "", "scientificName": "", "scientificNameAuthorship": "(Porter ex A. Gray) Vasey", "genus": "Melica", "subgenus": "", "specificEpithet": "", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "Edward G. Voss", "recordedBy": "John H. Ehlers", "recordNumber": "3440", "verbatimEventDate": "", "habitat": "Hardwoods 2nd growth [UMBS]", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "", "county": "Cheboygan", "municipality": "", "locality": "Riggsville corner", "decimalLatitude": "45.578783", "decimalLongitude": "-84.609909", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}