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": ""}
 UMITED STATES VO    (ov/v 1975-07-17       pontederiaceae (/*    MA 75032  ]h t27n, r22w, northwest quarter of section 2 CHRISTIAN 828   about 8 km south of springfield and 3 km north-northwest of nixa ;          o > roger w. sanders   ;_&N (Sw.) Willd. Missouri 9 
{"catalogNumber": "", "order": "", "family": "Pontederiaceae", "scientificName": "", "scientificNameAuthorship": "(Sw.) Willd.", "genus": "", "subgenus": "", "specificEpithet": "", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Roger W. Sanders", "recordNumber": "75032", "verbatimEventDate": "1975-07-17", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Missouri", "county": "Christian", "municipality": "", "locality": "About 8 km south of Springfield and 3 km north-northwest of Nixa", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "T27N, R22W, northwest quarter of section 2", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}