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": ""}
SEC. 17, ANN ARBOR TWP. 42Â°18'NLAT.,83Â°44'WLONG  z%gP  CARL O. GRASSL     NKq 1269460 WASHTENAW S3      Sparganium cD3 2   poales Ah   :a< Sparganium eurycarpum michigan ax    w?b 7887   United SPtates q:q      1937-07-05 PZ     
{"catalogNumber": "1269460", "order": "Poales", "family": "", "scientificName": "Sparganium eurycarpum", "scientificNameAuthorship": "", "genus": "Sparganium", "subgenus": "", "specificEpithet": "", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Carl O. Grassl", "recordNumber": "7887", "verbatimEventDate": "1937-07-05", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Michigan", "county": "Washtenaw", "municipality": "", "locality": "Sec. 17, Ann Arbor Twp. 42\u00c2\u00b018'NLat.,83\u00c2\u00b044'WLong", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}