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": ""}
1641732 n    Piper caninum S=b5    NJ~; PIPER  t Rahmat Si Boeea  lQ NORTH SUMATRA CANINUM !ak   TnC indonesia   3r 1935-02-05  7524 P  Di    piperaceae <0n     vicinity of loemban =nz:W  blume ?   ([3[ asahan    Piperales -uB P 
{"catalogNumber": "1641732", "order": "Piperales", "family": "Piperaceae", "scientificName": "Piper caninum", "scientificNameAuthorship": "Blume", "genus": "Piper", "subgenus": "", "specificEpithet": "caninum", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Rahmat Si Boeea", "recordNumber": "7524", "verbatimEventDate": "1935-02-05", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "Indonesia", "stateProvince": "North Sumatra", "county": "Asahan", "municipality": "", "locality": "Vicinity of Loemban", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}