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": ""}
   oudejans Y  Sk        l : 5 1491459 voucher for silica sample small, much-branched shrub, 1 m. latex whte. leaves mall emarginated â obcordate. @Z+78   DENISII 4;    -24.965866 u@    MADAGASCAR %3m|M         
{"catalogNumber": "1491459", "order": "", "family": "", "scientificName": "", "scientificNameAuthorship": "Oudejans", "genus": "", "subgenus": "", "specificEpithet": "denisii", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "", "recordNumber": "", "verbatimEventDate": "", "habitat": "", "occurrenceRemarks": "Voucher for silica sample Small, much-branched shrub, 1 m. Latex white. Leaves mall emarginated \u00e2\u0080\u0093 obcordate.", "associatedTaxa": "", "country": "Madagascar", "stateProvince": "", "county": "", "municipality": "", "locality": "", "decimalLatitude": "-24.965866", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}