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": ""}
 HENRY K. SVENSON K  R.R. DREISBACH R      sS iosco   A  eleocharis  Gu DL 7538  r MICHIGAN  1931-08-20 judRJ       _( poales     [achene ca 1.3 mm long. But base of tubercle over Â½ diameter of body, scales as in E compressa 5var atrata - EGV1959]  q   ?(ft8 SANDY SHORE.  sb yU eleocharis elliptica Cyperaceae 4tkAT   
{"catalogNumber": "", "order": "Poales", "family": "Cyperaceae", "scientificName": "Eleocharis elliptica", "scientificNameAuthorship": "", "genus": "Eleocharis", "subgenus": "", "specificEpithet": "", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "Henry K. Svenson", "recordedBy": "R.R. Dreisbach", "recordNumber": "7538", "verbatimEventDate": "1931-08-20", "habitat": "Sandy shore.", "occurrenceRemarks": "[achene ca 1.3 mm long. But base of tubercle over \u00c2\u00bd diameter of body, scales as in E compressa var atrata - EGV1959]", "associatedTaxa": "", "country": "", "stateProvince": "Michigan", "county": "Iosco", "municipality": "", "locality": "", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}