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": ""}
  2 1641849   samoa s%D  162 P&MAv      1905-03-19 [   e 7d Matautu (Savaii)        .m PIPERALES   R [  7! PIPER  ?I f. vaupel    
{"catalogNumber": "1641849", "order": "Piperales", "family": "", "scientificName": "", "scientificNameAuthorship": "", "genus": "Piper", "subgenus": "", "specificEpithet": "", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "F. Vaupel", "recordNumber": "162", "verbatimEventDate": "1905-03-19", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "Samoa", "stateProvince": "", "county": "", "municipality": "", "locality": "Matautu (Savaii)", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}