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": ""}
 1950-10-10 /     welw.      8$ Alismatales  aequinoctialis5 [   e ~mz LEMNA      Y LEMNA AEQUINOCTIALIS    ]zF  SANTA ANA      K_X N. C. Fassett 1663252 V   UQ Araceae    Zw)oT CHALCHUAPA 
{"catalogNumber": "1663252", "order": "Alismatales", "family": "Araceae", "scientificName": "Lemna aequinoctialis", "scientificNameAuthorship": "Welw.", "genus": "Lemna", "subgenus": "", "specificEpithet": "aequinoctialis", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "N. C. Fassett", "recordNumber": "", "verbatimEventDate": "1950-10-10", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "", "stateProvince": "Santa Ana", "county": "Chalchuapa", "municipality": "", "locality": "", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}