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": ""}
   8F 16746b  Mexico Lb   Arracacia C   1959-08-23 .@Y!h   P+O C. Ritchie Bell Distrito FederRal 0j~  LINCOLN CONSTANCE KmnCH       QR atropurpurea   U$ CONTACT UM HERBARIUM    GAD]  Apiales  BENTH. & HOOK.F. EX HEMSL. btm  Apiaceae ;B  1272762 `w   
{"catalogNumber": "1272762", "order": "Apiales", "family": "Apiaceae", "scientificName": "", "scientificNameAuthorship": "Benth. & Hook.f. ex Hemsl.", "genus": "Arracacia", "subgenus": "", "specificEpithet": "atropurpurea", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "Lincoln Constance", "recordedBy": "C. Ritchie Bell", "recordNumber": "16746b", "verbatimEventDate": "1959-08-23", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "Mexico", "stateProvince": "Distrito Federal", "county": "", "municipality": "", "locality": "Contact UM Herbarium", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}