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": ""}
    RK] BENJAMIN W. VAN EE, PAUL E. BERRY & H. RAZANATSOA     9c MADAGASCAR    SMAL TR3E, 5-7 M, LEPIDOTE. @tP@   48.3411167 YW K  CRO7ON MONGUE LNflT     =j -19.02679     l? th TOAMASINA 1542509 ,S4)     QraD croton 
{"catalogNumber": "1542509", "order": "", "family": "", "scientificName": "Croton mongue", "scientificNameAuthorship": "", "genus": "Croton", "subgenus": "", "specificEpithet": "", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Benjamin W. van Ee, Paul E. Berry & H. Razanatsoa", "recordNumber": "", "verbatimEventDate": "", "habitat": "", "occurrenceRemarks": "Small tree, 5-7 m, lepidote.", "associatedTaxa": "", "country": "Madagascar", "stateProvince": "Toamasina", "county": "", "municipality": "", "locality": "", "decimalLatitude": "-19.02679", "decimalLongitude": "48.3411167", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}