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": ""}
  V8(xA Buch.-Ham.  i  united states    #%l5 USA, Pima, Arid L4nds Greenhouses     1491511       EuphorbiaO JM    xQ 242     w:hGt arizona Eu phorbia nxivulia H%1T      G BRIAN L. DORSEY  %T:O 32.1415944 *NIVULIA tz   
{"catalogNumber": "1491511", "order": "", "family": "", "scientificName": "Euphorbia nivulia", "scientificNameAuthorship": "Buch.-Ham.", "genus": "Euphorbia", "subgenus": "", "specificEpithet": "nivulia", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Brian L. Dorsey", "recordNumber": "242", "verbatimEventDate": "", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Arizona", "county": "", "municipality": "", "locality": "USA, Pima, Arid Lands Greenhouses", "decimalLatitude": "32.1415944", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}