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": ""}
   acalypha m            gR volkensii   qX On bank of seasonal watercourse; in washed up sand   uhQ? malpighiales   TK 1666760  N /  shrub to 6 feet tall, growing in coppice, thornless, sap col0urless, bark purple-tinged; leaves at the ends of twigs; flowers greenish-white, aromatic  ACALYPHA VOLKENSII c!&f     1 tanzania   H-0 C 1952-10-05 
{"catalogNumber": "1666760", "order": "Malpighiales", "family": "", "scientificName": "Acalypha volkensii", "scientificNameAuthorship": "", "genus": "Acalypha", "subgenus": "", "specificEpithet": "volkensii", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "", "recordNumber": "", "verbatimEventDate": "1952-10-05", "habitat": "On bank of seasonal watercourse; in washed up sand", "occurrenceRemarks": "Shrub to 6 feet tall, growing in coppice, thornless, sap colourless, bark purple-tinged; leaves at the ends of twigs; flowers greenish-white, aromatic", "associatedTaxa": "", "country": "Tanzania", "stateProvince": "", "county": "", "municipality": "", "locality": "", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}