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": ""}
 richardsonii     37 Sl   snK potamogeton richardsonii   [STIPULES FIBROUS] b      FRANCES L. STEARNS ev1    i6zf MICHIGAN  D!Z5F united states potamogeton c  1281764  G;z      3J. Washtenaw ALISMATALES |MG   (A. BENN.) RYDB.  iZZs    @*s Huron River, near M. C. bridge., Ann Arbor  &RPi[ potamogetonaceae 1920-08-18  az|O 
{"catalogNumber": "1281764", "order": "Alismatales", "family": "Potamogetonaceae", "scientificName": "Potamogeton richardsonii", "scientificNameAuthorship": "(A. Benn.) Rydb.", "genus": "Potamogeton", "subgenus": "", "specificEpithet": "richardsonii", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Frances L. Stearns", "recordNumber": "37", "verbatimEventDate": "1920-08-18", "habitat": "", "occurrenceRemarks": "[stipules fibrous]", "associatedTaxa": "", "country": "United States", "stateProvince": "Michigan", "county": "Washtenaw", "municipality": "", "locality": "Huron River, near M. C. bridge., Ann Arbor", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}