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": ""}
    a. oersted  8/  Malpighiales Q3 t  croton i%   M??LL.ARG. qu^e        SZ m mexico    7-0 5114  T7Cj$ CONTACT UM HERBARIUM  #QH CROTON HETEROCHROUS   Z euphorbiaceae  HETEROCHROUS F4    / 1159873   
{"catalogNumber": "1159873", "order": "Malpighiales", "family": "Euphorbiaceae", "scientificName": "Croton heterochrous", "scientificNameAuthorship": "M??ll.Arg.", "genus": "Croton", "subgenus": "", "specificEpithet": "heterochrous", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "A. Oersted", "recordNumber": "5114", "verbatimEventDate": "", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "Mexico", "stateProvince": "", "county": "", "municipality": "", "locality": "Contact UM Herbarium", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}