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": ""}
  U AT THE TOP OF BLUFF ABOVE LAKE. WITH AILANTHUS ALTISSIMA, FALLOPIA SCANDENS, ARGTIUM MINUS.   -86.28705      .W s SEVERAL STEMS AND MANY DEAD STEMS , TO CA. 4 FEET TALL. STEMS CA. ONE CENTIMETER IN DIAMETER AND GLABROUS ON LOWER HALF.    I 2016-09-14          1513428 LGm     9L United States  BRASSICA NIGRA 5)-%Z          (L.) W. D. J. KOCH
{"catalogNumber": "1513428", "order": "", "family": "", "scientificName": "Brassica nigra", "scientificNameAuthorship": "(L.) W. D. J. Koch", "genus": "", "subgenus": "", "specificEpithet": "", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "", "recordNumber": "", "verbatimEventDate": "2016-09-14", "habitat": "At the top of bluff above lake. With Ailanthus altissima, Fallopia scandens, Arctium minus.", "occurrenceRemarks": "Several stems and many dead stems , to ca. 4 feet tall. Stems ca. one centimeter in diameter and glabrous on lower half.", "associatedTaxa": "", "country": "United States", "stateProvince": "", "county": "", "municipality": "", "locality": "", "decimalLatitude": "", "decimalLongitude": "-86.28705", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}