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": ""}
HAINAN :6N  sagittaria sagittifolia  s>8      &Z china  1702469 )W2A        YeI WET FIELD H. Y. L|ANG ?UhI    NO DAT0A 9FRbR        Alismataceae /)<  sagittaria /OH%/  sagittifolia u[: D 
{"catalogNumber": "1702469", "order": "", "family": "Alismataceae", "scientificName": "Sagittaria sagittifolia", "scientificNameAuthorship": "", "genus": "Sagittaria", "subgenus": "", "specificEpithet": "sagittifolia", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "H. Y. Liang", "recordNumber": "", "verbatimEventDate": "", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "China", "stateProvince": "Hainan", "county": "no data", "municipality": "", "locality": "wet field", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}