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": ""}
  eleocharis e   R  ` obtusa washington ?m8       (WILLD.) SCHULT. L)  Cgyperaceae l>       Qe% poles    d Eleocharis obtusa  n+r$ Mississippi  1)-#v NE of Stoneville, Delta Experimental Forest.     v<& M 1987-05-21 
{"catalogNumber": "", "order": "Poales", "family": "Cyperaceae", "scientificName": "Eleocharis obtusa", "scientificNameAuthorship": "(Willd.) Schult.", "genus": "Eleocharis", "subgenus": "", "specificEpithet": "obtusa", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "", "recordNumber": "", "verbatimEventDate": "1987-05-21", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "", "stateProvince": "Mississippi", "county": "Washington", "municipality": "", "locality": "NE of Stoneville, Delta Experimental Forest.", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}