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": ""}
 t  CANADA       U manitoba     ^W lemna :minor minor 4 -5m   i lemna  50B FLOATING ON A SMALL POND  1979-06-27 mz    y^ Y= 1208813   L. _m[-    D&B 23730   W.J. Cody aHDHL  
{"catalogNumber": "1208813", "order": "", "family": "", "scientificName": "Lemna minor", "scientificNameAuthorship": "L.", "genus": "Lemna", "subgenus": "", "specificEpithet": "minor", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "W.J. Cody", "recordNumber": "23730", "verbatimEventDate": "1979-06-27", "habitat": "Floating on a small pond", "occurrenceRemarks": "", "associatedTaxa": "", "country": "Canada", "stateProvince": "Manitoba", "county": "", "municipality": "", "locality": "", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}