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": ""}
  7P 1281430  Potamogetonaceae  ?Sc   S  potamogeton  1ya -83.780538  SG MUCK 3 F]T.     nodosus Woodland Lake  =   Livingston qxGE(     I(t 1946-07-14   r?I  POTAMOGETON NODOSUS   G b. robertson MICHIGAN qTWCG   42.554957 M   Y&* 900 ALISMATALES 4=  poir. qm    united states VA4$ 
{"catalogNumber": "1281430", "order": "Alismatales", "family": "Potamogetonaceae", "scientificName": "Potamogeton nodosus", "scientificNameAuthorship": "Poir.", "genus": "Potamogeton", "subgenus": "", "specificEpithet": "nodosus", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "B. Robertson", "recordNumber": "900", "verbatimEventDate": "1946-07-14", "habitat": "Muck 3 ft.", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Michigan", "county": "Livingston", "municipality": "", "locality": "Woodland Lake", "decimalLatitude": "42.554957", "decimalLongitude": "-83.780538", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}