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": ""}
 IX!&3 DUBIA  united states  f1;              ||gE Sandy. 5 ft depth.      1946-08-27  * 8R     5uCEa betty m. robertson  Cpw Heteranthera dubia   A Cn 45.316674
{"catalogNumber": "", "order": "", "family": "", "scientificName": "Heteranthera dubia", "scientificNameAuthorship": "", "genus": "", "subgenus": "", "specificEpithet": "dubia", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Betty M. Robertson", "recordNumber": "", "verbatimEventDate": "1946-08-27", "habitat": "Sandy. 5 ft depth.", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "", "county": "", "municipality": "", "locality": "", "decimalLatitude": "45.316674", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}