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": ""}
PONTEDERIA  o$&)  CORDATA  /BEu         s.n. .TA   @9YN 1897-09-30   pot. flats PxHS@   pontederiaceae 7k       5M. 1659807 CORDATA b   Washington, D.C. 3s-m    x A. J. PIETERS  var. g]Q    rL?5 Pontederia cordata var. cordata
{"catalogNumber": "1659807", "order": "", "family": "Pontederiaceae", "scientificName": "Pontederia cordata var. cordata", "scientificNameAuthorship": "", "genus": "Pontederia", "subgenus": "", "specificEpithet": "cordata", "verbatimTaxonRank": "var.", "infraspecificEpithet": "cordata", "identifiedBy": "", "recordedBy": "A. J. Pieters", "recordNumber": "s.n.", "verbatimEventDate": "1897-09-30", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "", "stateProvince": "Washington, D.C.", "county": "", "municipality": "", "locality": "Pot. Flats", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}