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": ""}
  common. flowers shortly exserted from the water; tepals white with yellow incurved marginal lobes. %       cabombaceae ]    $ A. GRAY  1431719 @ a&W      SAN MARCOS. SHALLOW POND NEAR SPRINGSAT HEAD OF SAN MARCOS RIVER.  HAYS Bb        B  4299  o:c  1952-07-06  I LQF Shallow pond near springs at head of river.   eZ!1] UNITED STATES 
{"catalogNumber": "1431719", "order": "", "family": "Cabombaceae", "scientificName": "", "scientificNameAuthorship": "A. Gray", "genus": "", "subgenus": "", "specificEpithet": "", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "", "recordNumber": "4299", "verbatimEventDate": "1952-07-06", "habitat": "Shallow pond near springs at head of river.", "occurrenceRemarks": "Common. Flowers shortly exserted from the water; tepals white with yellow incurved marginal lobes.", "associatedTaxa": "", "country": "United States", "stateProvince": "", "county": "Hays", "municipality": "", "locality": "San Marcos. Shallow pond near springs at head of San Marcos River.", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}