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": ""}
  ?)Ps[ 1937-08-26 -84.324929 Y   poales =   x margin of little lake sixteen.   ]mC : MICHIGAN    _7 (Hill) Druce     ?mr./ JOHN H. EHLERS        6286 8GD;   ERIOCAULACEAE     eriocaulon 5. 
{"catalogNumber": "", "order": "Poales", "family": "Eriocaulaceae", "scientificName": "", "scientificNameAuthorship": "(Hill) Druce", "genus": "Eriocaulon", "subgenus": "", "specificEpithet": "", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "John H. Ehlers", "recordNumber": "6286", "verbatimEventDate": "1937-08-26", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "", "stateProvince": "Michigan", "county": "", "municipality": "", "locality": "Margin of Little Lake Sixteen.", "decimalLatitude": "", "decimalLongitude": "-84.324929", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}