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": ""}
croton submetallicus 1       J$:]< 500        Z?u 49.81667    :< g 1993-04-22     Coton F+Gi    tree 8 m tall with small yellow flowers )  |    
{"catalogNumber": "", "order": "", "family": "", "scientificName": "Croton submetallicus", "scientificNameAuthorship": "", "genus": "Croton", "subgenus": "", "specificEpithet": "", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "", "recordNumber": "", "verbatimEventDate": "1993-04-22", "habitat": "", "occurrenceRemarks": "Tree 8 m tall with small yellow flowers", "associatedTaxa": "", "country": "", "stateProvince": "", "county": "", "municipality": "", "locality": "", "decimalLatitude": "", "decimalLongitude": "49.81667", "verbatimCoordinates": "", "minimumElevationInMeters": "500", "maximumElevationInMeters": ""}