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": ""}
stratiotes Ddv;-  PISTIA STRATIOTES 8    xsz w Araceae  1 guayas river at guayaquil    16733 /    t 1663288   t[+K! 1934-02 W. R. TAYLOR IF            L. 7JF_    
{"catalogNumber": "1663288", "order": "", "family": "Araceae", "scientificName": "Pistia stratiotes", "scientificNameAuthorship": "L.", "genus": "", "subgenus": "", "specificEpithet": "stratiotes", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "W. R. Taylor", "recordNumber": "16733", "verbatimEventDate": "1934-02", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "", "stateProvince": "", "county": "", "municipality": "", "locality": "Guayas River at Guayaquil", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}