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": ""}
  2h 1948-07-27 alismatales u,P k      PILGRIM RIVER AT BRIDGE ON U.S. 41 Y  michx. )XBi       Y#  Charles D. Richards ELODEA CANADENSIS [vN     Sh/Y UNITED STATES   F 1113  Ack] canadensis "Dense growth" FZmJ    Michigan y6    
{"catalogNumber": "", "order": "Alismatales", "family": "", "scientificName": "Elodea canadensis", "scientificNameAuthorship": "Michx.", "genus": "", "subgenus": "", "specificEpithet": "canadensis", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Charles D. Richards", "recordNumber": "1113", "verbatimEventDate": "1948-07-27", "habitat": "", "occurrenceRemarks": "\"Dense growth\"", "associatedTaxa": "", "country": "United States", "stateProvince": "Michigan", "county": "", "municipality": "", "locality": "Pilgrim River at bridge on U.S. 41", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}