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": ""}
 vf2 1531703     SD H. S. Irwin, R. Souza, J. W. Grear, R. Reis dos Santos  x HETEROPTERYS a. juss. E%     brazil =7   1966-06-15      kW/k 17164  %J. xavantina    contact um herbarium    Mato Grosso Ng* =   Z Malpighiales      kXN Heteropterys rhopalifolia
{"catalogNumber": "1531703", "order": "Malpighiales", "family": "", "scientificName": "Heteropterys rhopalifolia", "scientificNameAuthorship": "A. Juss.", "genus": "Heteropterys", "subgenus": "", "specificEpithet": "", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "H. S. Irwin, R. Souza, J. W. Grear, R. Reis dos Santos", "recordNumber": "17164", "verbatimEventDate": "1966-06-15", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "Brazil", "stateProvince": "Mato Grosso", "county": "Xavantina", "municipality": "", "locality": "Contact UM Herbarium", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}