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": ""}
(willd.) schult. J  Locally frequent in soft black mud. ~&LW   `S 2532      xm^ ELEOCHARIS   ^Va37 1954-08-27       ,29F  "Roots orange."  michigan =LS   edward g. voss p    rK  o -84.681686   1475747 xTj  ELEOCHARIS OBTUSA M   ?c OBTSA
{"catalogNumber": "1475747", "order": "", "family": "", "scientificName": "Eleocharis obtusa", "scientificNameAuthorship": "(Willd.) Schult.", "genus": "Eleocharis", "subgenus": "", "specificEpithet": "obtusa", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Edward G. Voss", "recordNumber": "2532", "verbatimEventDate": "1954-08-27", "habitat": "Locally frequent in soft black mud.", "occurrenceRemarks": "\"Roots orange.\"", "associatedTaxa": "", "country": "", "stateProvince": "Michigan", "county": "", "municipality": "", "locality": "", "decimalLatitude": "", "decimalLongitude": "-84.681686", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}