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": ""}
  j. g. schaffner @[   16S63356 5|`  lemna Mo  mexico L7_k      1875 kduO!    GIBBA qb@     (f Lemna gibba   U: a|ismatales   PQ>SO IN GRAEBEN    s.n. 93!  
{"catalogNumber": "1663356", "order": "Alismatales", "family": "", "scientificName": "Lemna gibba", "scientificNameAuthorship": "", "genus": "Lemna", "subgenus": "", "specificEpithet": "gibba", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "J. G. Schaffner", "recordNumber": "s.n.", "verbatimEventDate": "1875", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "Mexico", "stateProvince": "", "county": "", "municipality": "", "locality": "In Graeben", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}