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": ""}
45.745247 xa   1906-08-20 P  In filds apnd sandy road. r1  o    united states ]C  L. Ib/    ,X6 -87.06458  `N MICHIGAN     1471854 KP t   Salsola tragus [   FV20 amaranthaceae DELTA L  A. DACH1NOWSKI nJqYc  CARYOPHYLLALES xP  7ragus jw  salsola 0@#     escanaba. z(&:Q s.n. SfX( 
{"catalogNumber": "1471854", "order": "Caryophyllales", "family": "Amaranthaceae", "scientificName": "Salsola tragus", "scientificNameAuthorship": "L.", "genus": "Salsola", "subgenus": "", "specificEpithet": "tragus", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "A. Dachnowski", "recordNumber": "s.n.", "verbatimEventDate": "1906-08-20", "habitat": "In fields and sandy road.", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Michigan", "county": "Delta", "municipality": "", "locality": "Escanaba.", "decimalLatitude": "45.745247", "decimalLongitude": "-87.06458", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}