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": ""}
 mx  Piperales     Qb1 piperaceae   B B  nigrum trivandrum, travancore B Pk   piper w   0 cR kerala   d 5131  1933-12-13 p  1641829 &<,     b& thiruvananthapuram  I EILEEN W. ERLANSON   _x4 piper nigrum  sQ India  L. vu  
{"catalogNumber": "1641829", "order": "Piperales", "family": "Piperaceae", "scientificName": "Piper nigrum", "scientificNameAuthorship": "L.", "genus": "Piper", "subgenus": "", "specificEpithet": "nigrum", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Eileen W. Erlanson", "recordNumber": "5131", "verbatimEventDate": "1933-12-13", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "India", "stateProvince": "Kerala", "county": "Thiruvananthapuram", "municipality": "", "locality": "Trivandrum, Travancore", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}