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     w/   ELEOCHARIS ELIPTICA sandy beach. ][x  GRACE HARBOR, HANMOND BAY, LAKE HURON.  @B     SG :# united states   1L@j 5633   Kunth vI;       elliptica wkQb        45.55204 ( 9~( 
{"catalogNumber": "", "order": "", "family": "", "scientificName": "Eleocharis elliptica", "scientificNameAuthorship": "Kunth", "genus": "", "subgenus": "", "specificEpithet": "elliptica", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "John H. Ehlers", "recordNumber": "5633", "verbatimEventDate": "", "habitat": "Sandy beach.", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "", "county": "", "municipality": "", "locality": "Grace Harbor, Hammond Bay, Lake Huron.", "decimalLatitude": "45.55204", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}