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": ""}
  @s=]* robert merrill king& thomas r. soderstrom       1961-10-25 Nv7+              @P1] 18.2681     p. dã¡vila      v_2f Poales   EIK LA OTATERA; 32 KM N OF PLAYA AZUL, SIERRA MADRE DEL SUR, REGION OF LOS ENCINOS
{"catalogNumber": "", "order": "Poales", "family": "", "scientificName": "", "scientificNameAuthorship": "", "genus": "", "subgenus": "", "specificEpithet": "", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "P. D\u00c3\u00a1vila", "recordedBy": "Robert Merrill King & Thomas R. Soderstrom", "recordNumber": "", "verbatimEventDate": "1961-10-25", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "", "stateProvince": "", "county": "", "municipality": "", "locality": "La Otatera; 32 km N of Playa Azul, Sierra Madre del Sur, region of Los Encinos", "decimalLatitude": "18.2681", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}