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": ""}
    vsA Pontederi4ceae   =KP 1970-08-24         @ COMMELNALES   r. lowden |%   N 9K_ rotundifolia    2 wD_ (kunth) griseb. PANAMA :L&L     n* chares n. horn  ZEwW contact um herbarium  Y HETERANTHERA HETERANTHERA ROTUNDIFOLIA  u<5,    <  ND
{"catalogNumber": "", "order": "Commelinales", "family": "Pontederiaceae", "scientificName": "Heteranthera rotundifolia", "scientificNameAuthorship": "(Kunth) Griseb.", "genus": "Heteranthera", "subgenus": "", "specificEpithet": "rotundifolia", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "Charles N. Horn", "recordedBy": "R. Lowden", "recordNumber": "ND", "verbatimEventDate": "1970-08-24", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "Panama", "stateProvince": "", "county": "", "municipality": "", "locality": "Contact UM Herbarium", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}