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": ""}
7538 T]        SAN LUIS POTOSI !teL^  EUPHORBIA ;       euphorbiaceae H  L.  8X  1939-07-21 ptz+F   :$4i 4roadside   ; 30 21.84902 <  ciudad valles KFl     U Mexico  
{"catalogNumber": "", "order": "", "family": "Euphorbiaceae", "scientificName": "", "scientificNameAuthorship": "L.", "genus": "Euphorbia", "subgenus": "", "specificEpithet": "", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "", "recordNumber": "7538", "verbatimEventDate": "1939-07-21", "habitat": "roadside", "occurrenceRemarks": "", "associatedTaxa": "", "country": "Mexico", "stateProvince": "San Luis Potosi", "county": "Ciudad Valles", "municipality": "", "locality": "", "decimalLatitude": "21.84902", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "30", "maximumElevationInMeters": ""}