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": ""}
plains a   linum perenne (    0]p grpm 40723  denver b7+q   |*? 1893-06-24       1504660 o>   IL! ] S.H. !Camp & D.R. Camp   ah UNITED STATES    z)is perGenne   colorado 7W6   PF LINUM L. G7ycR   
{"catalogNumber": "1504660", "order": "", "family": "", "scientificName": "Linum perenne", "scientificNameAuthorship": "L.", "genus": "Linum", "subgenus": "", "specificEpithet": "perenne", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "S.H. Camp & D.R. Camp", "recordNumber": "", "verbatimEventDate": "1893-06-24", "habitat": "Plains", "occurrenceRemarks": "GRPM 40723", "associatedTaxa": "", "country": "United States", "stateProvince": "Colorado", "county": "Denver", "municipality": "", "locality": "", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}