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": ""}
 8 bouteloua gracilis      _V| 2004-08-18     1509 B     poaceae   BOUTELOUA pDkE;      40.6425 fU   Z$ 1431437  x4 WELD     
{"catalogNumber": "1431437", "order": "", "family": "Poaceae", "scientificName": "Bouteloua gracilis", "scientificNameAuthorship": "", "genus": "Bouteloua", "subgenus": "", "specificEpithet": "", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "", "recordNumber": "", "verbatimEventDate": "2004-08-18", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "", "stateProvince": "", "county": "Weld", "municipality": "", "locality": "", "decimalLatitude": "40.6425", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "1509", "maximumElevationInMeters": ""}