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": ""}
    c 1975-07-15  v ca. 1/2 mi. n of curis; sec. 13, t44n, r12w;    ASe(7 richardsonii  mackinac &   ;g Michigan POTAMOGETON RICHARDSONII Gqz  potamogetonaceae zH   /I robert r. .haynes potamogeton UT  ALISMATALES  )yb    a  5215  Uncommon; turbid water with sandy substrate of Big Manistique Lake,        MHU (A. BENN.) RYDB.      "ALK. 83 PPM."  Lrn united states 1281760 m 
{"catalogNumber": "1281760", "order": "Alismatales", "family": "Potamogetonaceae", "scientificName": "Potamogeton richardsonii", "scientificNameAuthorship": "(A. Benn.) Rydb.", "genus": "Potamogeton", "subgenus": "", "specificEpithet": "richardsonii", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Robert R. Haynes", "recordNumber": "5215", "verbatimEventDate": "1975-07-15", "habitat": "Uncommon; turbid water with sandy substrate of Big Manistique Lake,", "occurrenceRemarks": "\"alk. 83 ppm.\"", "associatedTaxa": "", "country": "United States", "stateProvince": "Michigan", "county": "Mackinac", "municipality": "", "locality": "ca. 1/2 mi. N of Curtis; sec. 13, T44N, R12W;", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}