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": ""}
      L  marshall c. johnston euphorbiaceae B X  1543355 shb   taqb croton  Dd 1933-12-07  kt$ : L.  CROTON HUMILIS Uhhc        ~4J UNITED STAtTES  texas IX   s  E.U. Clover  MALPIGHIALES b`  Roadside L. O. Johnson home south 8 Alamo I%N;Z   +l8 hidlgo HUM|LIS $5) 
{"catalogNumber": "1543355", "order": "Malpighiales", "family": "Euphorbiaceae", "scientificName": "Croton humilis", "scientificNameAuthorship": "L.", "genus": "Croton", "subgenus": "", "specificEpithet": "humilis", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "Marshall C. Johnston", "recordedBy": "E.U. Clover", "recordNumber": "", "verbatimEventDate": "1933-12-07", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Texas", "county": "Hidalgo", "municipality": "", "locality": "Roadside L. O. Johnson home south 8 Alamo", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}