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": ""}
 x Bradford S. Slaughter   + :R  1479599 e shore of grass lake. jt&h  ELEOCHARISn ROBBINSII U    70 7 in shallow water and recently exposed sandy muck flats.    ROSCOMMON v O   y 44.185181 -84.784594 !]^        robbinsii x  2010-09-21 d6   652 >     |j ELEOCHARIS 
{"catalogNumber": "1479599", "order": "", "family": "", "scientificName": "Eleocharis robbinsii", "scientificNameAuthorship": "", "genus": "Eleocharis", "subgenus": "", "specificEpithet": "robbinsii", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Bradford S. Slaughter", "recordNumber": "652", "verbatimEventDate": "2010-09-21", "habitat": "In shallow water and recently exposed sandy muck flats.", "occurrenceRemarks": "", "associatedTaxa": "", "country": "", "stateProvince": "", "county": "Roscommon", "municipality": "", "locality": "E shore of Grass Lake.", "decimalLatitude": "44.185181", "decimalLongitude": "-84.784594", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}