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": ""}
 Md4 24  *1  V Potamogeton   r MICHIGAN    La : Alismatales  GRAMINEUS  A    -j[G l.  2 8 -87.69785  potamoqeton gramineus Wl5dl   gko United States   (c 46.80589   LAKE INDEPENDENCE T51N, R27W, STA. NO. 30  g  1936-06-30 ~:k       
{"catalogNumber": "", "order": "Alismatales", "family": "", "scientificName": "Potamogeton gramineus", "scientificNameAuthorship": "L.", "genus": "Potamogeton", "subgenus": "", "specificEpithet": "gramineus", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "", "recordNumber": "24", "verbatimEventDate": "1936-06-30", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Michigan", "county": "", "municipality": "", "locality": "Lake Independence T51N, R27W, Sta. No. 30", "decimalLatitude": "46.80589", "decimalLongitude": "-87.69785", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}