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": ""}
1682 +    RF, NELSON, PINE LAKE     @  forming dense mats in shallow water   CLAYTON W. BAZUIN 6pd  Kent w   OOg myriophyllum tenellum  -85.46806 5   BIGELOW  +;      ,!ey MITCHELL S. ALIX  2c UNITED STATES    tenellum =[8pq  43.21917 yHnWN  
{"catalogNumber": "", "order": "", "family": "", "scientificName": "Myriophyllum tenellum", "scientificNameAuthorship": "Bigelow", "genus": "", "subgenus": "", "specificEpithet": "tenellum", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "Mitchell S. Alix", "recordedBy": "Clayton W. Bazuin", "recordNumber": "1682", "verbatimEventDate": "", "habitat": "Forming dense mats in shallow water", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "", "county": "Kent", "municipality": "", "locality": "Nelson, Pine Lake", "decimalLatitude": "43.21917", "decimalLongitude": "-85.46806", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}