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": ""}
1829-07      -73.6959 BU  Anton A. Reznicek kzQ j    @0Y potamogetonaceae     RENSSELAER Y7LH    i804 united states Morong rd~   B& *. illinoensis      WH>w 1480186  potamogetnon gpRmc   POTAMOGETON ILLINOENSIS Rt    42.7283 Y   xn troy, river hudson [coordinates are for the river shore at the 19th st. bridge.]
{"catalogNumber": "1480186", "order": "", "family": "Potamogetonaceae", "scientificName": "Potamogeton illinoensis", "scientificNameAuthorship": "Morong", "genus": "Potamogeton", "subgenus": "", "specificEpithet": "illinoensis", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "Anton A. Reznicek", "recordedBy": "", "recordNumber": "", "verbatimEventDate": "1829-07", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "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": ""}