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": ""}
 4=w SOUTH DAKOTA     AVEM NELSON  > POALES gravelly slopes 4    36 @rO0X     wX CAVE HILLS   om_ S. S. VISHER        ^nH?/ gerardii united states T;h0      n vitman   andropogon ger4rdii SZI  
{"catalogNumber": "", "order": "Poales", "family": "", "scientificName": "Andropogon gerardii", "scientificNameAuthorship": "Vitman", "genus": "", "subgenus": "", "specificEpithet": "gerardii", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "Aven Nelson", "recordedBy": "S. S. Visher", "recordNumber": "36", "verbatimEventDate": "", "habitat": "gravelly slopes", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "South Dakota", "county": "", "municipality": "", "locality": "Cave Hills", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}