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": ""}
united states 8WgF       panicum urvielleanum 2Fa   S.N. qV/  `Riverside S    V+2 Whitewater  Aq~4 panicum  7m  1903-05-11  CALIFORNIA . a    Kunth  K?:(    MR`G URVILLEANUM   $ POALES  MARCUS E. JONES Et    nN8 poaceae     1419121  
{"catalogNumber": "1419121", "order": "Poales", "family": "Poaceae", "scientificName": "Panicum urvilleanum", "scientificNameAuthorship": "Kunth", "genus": "Panicum", "subgenus": "", "specificEpithet": "urvilleanum", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Marcus E. Jones", "recordNumber": "s.n.", "verbatimEventDate": "1903-05-11", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "California", "county": "Riverside", "municipality": "", "locality": "Whitewater", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}