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": ""}
    ?G 7216  MEXICO `:QR     james h. maysilles 1187421 b     YPQ G boraginales  GREENE Y   San Luis n+sok  Boraginaceae c   h%r 1950-07-01  Durango L?   aZ LITHOSPERMUM  TUBULIFLORUM B u    LITHOSPEvRMUM TUBULIFLORUM $     U no data 
{"catalogNumber": "1187421", "order": "Boraginales", "family": "Boraginaceae", "scientificName": "Lithospermum tubuliflorum", "scientificNameAuthorship": "Greene", "genus": "Lithospermum", "subgenus": "", "specificEpithet": "tubuliflorum", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "James H. Maysilles", "recordNumber": "7216", "verbatimEventDate": "1950-07-01", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "Mexico", "stateProvince": "Durango", "county": "no data", "municipality": "", "locality": "San Luis", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}