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": ""}
  ] SUBSP. (Mertc. & W. D. J. Koch) R. R. Haynes & He!llq. 2D      1458930  5TJ  Potamogeton pusillus subsp. tenuissimus 4j   YJ 1996-08-24 Ontario 3Wc@   muskoka ]F8   TENUISSIMUS m  Sb   & canada  WILLIAM J. CRINS MH=    P 8, Potamogetonaceae   D alismatales  ::oKm 10460    pusillus Spx 
{"catalogNumber": "1458930", "order": "Alismatales", "family": "Potamogetonaceae", "scientificName": "Potamogeton pusillus subsp. tenuissimus", "scientificNameAuthorship": "(Mert. & W. D. J. Koch) R. R. Haynes & Hellq.", "genus": "", "subgenus": "", "specificEpithet": "pusillus", "verbatimTaxonRank": "subsp.", "infraspecificEpithet": "tenuissimus", "identifiedBy": "", "recordedBy": "William J. Crins", "recordNumber": "10460", "verbatimEventDate": "1996-08-24", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "Canada", "stateProvince": "Ontario", "county": "Muskoka", "municipality": "", "locality": "", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}