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": ""}
  1169825 A 2rS   E crataegus stipulosa  <- margery c. carlson  7&x  1590 stipulosa /fE      8S  ROSACEAE rosales ~       a  mexico       ,= Crataegus    /=+~+ 1949-03-25 contact um herbarium (c   et (kunth) steud.
{"catalogNumber": "1169825", "order": "Rosales", "family": "Rosaceae", "scientificName": "Crataegus stipulosa", "scientificNameAuthorship": "(Kunth) Steud.", "genus": "Crataegus", "subgenus": "", "specificEpithet": "stipulosa", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Margery C. Carlson", "recordNumber": "1590", "verbatimEventDate": "1949-03-25", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "Mexico", "stateProvince": "", "county": "", "municipality": "", "locality": "Contact UM Herbarium", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}