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": ""}
   4 RENSSELAER   potamogeton illinoensis  e   fvLvc 1829-07  :D30 42.7283  E potamoqeton illinoensis F.z`    ]ECjh anton a. reznicek   Alismatales SY`[  TROY, RIVER HUDSON [COORDINATES ARE FOR THE RIVER SHORE AT THE 19TH ST. BRIDGE.]  q I~   H3Q doglass houghton -73.959 v>6        POTAMOGETONACEAE l/N   1480186 !0A[R 
{"catalogNumber": "1480186", "order": "Alismatales", "family": "Potamogetonaceae", "scientificName": "Potamogeton illinoensis", "scientificNameAuthorship": "", "genus": "Potamogeton", "subgenus": "", "specificEpithet": "illinoensis", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "Anton A. Reznicek", "recordedBy": "Douglass Houghton", "recordNumber": "", "verbatimEventDate": "1829-07", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "", "stateProvince": "", "county": "Rensselaer", "municipality": "", "locality": "Troy, River Hudson [Coordinates are for the River shore at the 19th St. bridge.]", "decimalLatitude": "42.7283", "decimalLongitude": "-73.6959", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}