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": ""}
      Limnocharis flava 7  -99.6549 @  1953-09-25 C@    BUCHENAU  X  1888 %j   alismaales l^6     flava B-x+b         
{"catalogNumber": "", "order": "Alismatales", "family": "", "scientificName": "Limnocharis flava", "scientificNameAuthorship": "Buchenau", "genus": "", "subgenus": "", "specificEpithet": "flava", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "", "recordNumber": "1888", "verbatimEventDate": "1953-09-25", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "", "stateProvince": "", "county": "", "municipality": "", "locality": "", "decimalLatitude": "", "decimalLongitude": "-99.6549", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}