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": ""}
1930-06-27 k7=X  1644763 K7     oh $(U 750 Brazil M y    euphorbiaceae wu    -  vicosma     Mabea fistulifera subsp. fistulifera 6       mabea 5 &        X subsp.
{"catalogNumber": "1644763", "order": "", "family": "Euphorbiaceae", "scientificName": "Mabea fistulifera subsp. fistulifera", "scientificNameAuthorship": "", "genus": "Mabea", "subgenus": "", "specificEpithet": "", "verbatimTaxonRank": "subsp.", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "", "recordNumber": "", "verbatimEventDate": "1930-06-27", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "Brazil", "stateProvince": "", "county": "Vicosa", "municipality": "", "locality": "", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "750", "maximumElevationInMeters": ""}