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": ""}
 / U i! united states       j7 G. L. Webster & K. I. Miller texas O   d6n malpighiales  :[$7 838  u MÃ¼LL. ARG.  Blackstone Ranch, ced4r-sotol meas-top 13 miles south of Sheffield o   euphorbiaceae =IX  leucophyllus I &   croton leucophyllus DC     15 247   croton m[MA   TERRELL 7)%v  1949-06-12 S   Cy 1543379 
{"catalogNumber": "1543379", "order": "Malpighiales", "family": "Euphorbiaceae", "scientificName": "Croton leucophyllus", "scientificNameAuthorship": "M\u00c3\u00bcll. Arg.", "genus": "Croton", "subgenus": "", "specificEpithet": "leucophyllus", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "G. L. Webster & K. I. Miller", "recordNumber": "247", "verbatimEventDate": "1949-06-12", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Texas", "county": "Terrell", "municipality": "", "locality": "Blackstone Ranch, cedar-sotol meas-top 13 miles south of Sheffield", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "838", "maximumElevationInMeters": ""}