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": ""}
POLYCARPA ^ 57   *Ug Euphorbia polycarpa   a malpighiale5 CLARK i[        Y$5 NEVADA    e;q 1941-04 EUPHORBIA K[+w   YQ united states  P^/  Hemenway Wash, Lake Mead   @ 1288938  Euphorbiaceae @2I   47 [D  Benth.  J/  e.u. clover grS    
{"catalogNumber": "1288938", "order": "Malpighiales", "family": "Euphorbiaceae", "scientificName": "Euphorbia polycarpa", "scientificNameAuthorship": "Benth.", "genus": "Euphorbia", "subgenus": "", "specificEpithet": "polycarpa", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "E.U. Clover", "recordNumber": "47", "verbatimEventDate": "1941-04", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Nevada", "county": "Clark", "municipality": "", "locality": "Hemenway Wash, Lake Mead", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}