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": ""}
c. joseph mayer ?(w   D s.n.    ^=  Germany  -=hx 12064>16 1894-04 tkN    7 Malpighiales    populus L=     Salicaceae ]   j JKxW Ã jackii sarg. [ q@z     K_ Contact UM Herbarium  XjB| POPULUS Ã JACKII   Bavaria _VJ `   
{"catalogNumber": "1206416", "order": "Malpighiales", "family": "Salicaceae", "scientificName": "Populus \u00c3\u0097 jackii", "scientificNameAuthorship": "Sarg.", "genus": "Populus", "subgenus": "", "specificEpithet": "\u00c3\u0097 jackii", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "C. Joseph Mayer", "recordNumber": "s.n.", "verbatimEventDate": "1894-04", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "Germany", "stateProvince": "Bavaria", "county": "", "municipality": "", "locality": "Contact UM Herbarium", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}