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": ""}
   % 7907    E. L. EKNAN Chile iN   5` on an earth bank   f ORIENTE: SANTIAGO, S OF TOWN    no data U0    P 1916-10-15 Euphorbiaceae + ]   Sr euphorbia berterana           I  1158728  
{"catalogNumber": "1158728", "order": "", "family": "Euphorbiaceae", "scientificName": "Euphorbia berteroana", "scientificNameAuthorship": "", "genus": "", "subgenus": "", "specificEpithet": "", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "E. L. Ekman", "recordNumber": "7907", "verbatimEventDate": "1916-10-15", "habitat": "on an earth bank", "occurrenceRemarks": "", "associatedTaxa": "", "country": "Chile", "stateProvince": "no data", "county": "", "municipality": "", "locality": "Oriente: Santiago, S of town", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}