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": ""}
   WPKO 2000     g:,W W. L. Graham & M. W. Frohlich  6 q -96.36667  OAXACA .p9        1654367 x%     ASPARAGALES Om        AREA CALLED "LLANO VERDE" (CA. 12 KM ESE OF IXTLAN DE JUAREZ) _u:ts 
{"catalogNumber": "1654367", "order": "Asparagales", "family": "", "scientificName": "", "scientificNameAuthorship": "", "genus": "", "subgenus": "", "specificEpithet": "", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "W. L. Graham & M. W. Frohlich", "recordNumber": "", "verbatimEventDate": "", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "", "stateProvince": "Oaxaca", "county": "", "municipality": "", "locality": "Area called \"Llano Verde\" (ca. 12 km ESE of Ixtlan de Juarez)", "decimalLatitude": "", "decimalLongitude": "-96.36667", "verbatimCoordinates": "", "minimumElevationInMeters": "2000", "maximumElevationInMeters": ""}