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. c4  maculata t^.3B   INDIANA  JT     p Malpighiales    r2iT CHARLES M. EK    B%>h united states    ]7 1942-07-28   i S.N.  euphorbia maculata ~z 0/    1288296 !n  Railroad east of Dunlap.  ts  EUPHORBIA 2 S?O    9n&( Euphorbiaceae   elkhart  
{"catalogNumber": "1288296", "order": "Malpighiales", "family": "Euphorbiaceae", "scientificName": "Euphorbia maculata", "scientificNameAuthorship": "L.", "genus": "Euphorbia", "subgenus": "", "specificEpithet": "maculata", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Charles M. Ek", "recordNumber": "s.n.", "verbatimEventDate": "1942-07-28", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Indiana", "county": "Elkhart", "municipality": "", "locality": "Railroad east of Dunlap.", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}