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": ""}
        R 1946-N12-17    (V: E.U. CLOVER  agave = !   9623 B< R!    4v; asparagales  Ml H.S.Gentry  agave hiemiflora 4 f:  howard s. gentry g$33    N ;  guatemala  asparag4ceae UN    1143Y935 ~ 
{"catalogNumber": "1143935", "order": "Asparagales", "family": "Asparagaceae", "scientificName": "Agave hiemiflora", "scientificNameAuthorship": "H.S.Gentry", "genus": "Agave", "subgenus": "", "specificEpithet": "", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "Howard S. Gentry", "recordedBy": "E.U. Clover", "recordNumber": "9623", "verbatimEventDate": "1946-12-17", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "Guatemala", "stateProvince": "", "county": "", "municipality": "", "locality": "", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}