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": ""}
  Z branch  j. funk & e.w. roelofs ^o    SPIRODELA POLYRHIZAu :N5     s>#b depth of water: surface.        ALISMATALES 5f6E3  1941-06-10 9EF;A   S.N. .s>=~     1474485 wvElk   
{"catalogNumber": "1474485", "order": "Alismatales", "family": "", "scientificName": "Spirodela polyrhiza", "scientificNameAuthorship": "", "genus": "", "subgenus": "", "specificEpithet": "", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "J. Funk & E.W. Roelofs", "recordNumber": "s.n.", "verbatimEventDate": "1941-06-10", "habitat": "Depth of Water: Surface.", "occurrenceRemarks": "", "associatedTaxa": "", "country": "", "stateProvince": "", "county": "Branch", "municipality": "", "locality": "", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}