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": ""}
  1466184 b a  persicaria l  455 =    hydropiperoides X: R   4Z UNITED STATES polygonaceae B    Persicaria hydropiperoides u5    &1 6" WATER.     !8 1d940-07-13  ,T|Q8 MICHIGAN  CdokH (MICHX.) SMALL  v/9GK BETTY M. ROBERTSON  | washtenaw Caryophyllales FLCQ[     |p_ huron river by rr crossing.
{"catalogNumber": "1466184", "order": "Caryophyllales", "family": "Polygonaceae", "scientificName": "Persicaria hydropiperoides", "scientificNameAuthorship": "(Michx.) Small", "genus": "Persicaria", "subgenus": "", "specificEpithet": "hydropiperoides", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Betty M. Robertson", "recordNumber": "455", "verbatimEventDate": "1940-07-13", "habitat": "6\" water.", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Michigan", "county": "Washtenaw", "municipality": "", "locality": "Huron River by RR Crossing.", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}