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   unted states 1406700 a8E4  colorado -Nt<  (kunth) lag. ex griffiths 9H %   poaceae _/Wi*  1942-08-03  [  gracilis C       SE OF DENVER. ] l+/   Q! 8464  &Aad Dry rolling plains JOHN H. EHLER >      bAkm POALES   l U bouteloua gracilis    h BOUTELOUA   & Arapahoe
{"catalogNumber": "1406700", "order": "Poales", "family": "Poaceae", "scientificName": "Bouteloua gracilis", "scientificNameAuthorship": "(Kunth) Lag. ex Griffiths", "genus": "Bouteloua", "subgenus": "", "specificEpithet": "gracilis", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "John H. Ehlers", "recordNumber": "8464", "verbatimEventDate": "1942-08-03", "habitat": "Dry rolling plains", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Colorado", "county": "Arapahoe", "municipality": "", "locality": "SE of Denver.", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}