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": ""}
 I CACTACEAE opuntia phaeacantha lU0R     u near 50 f7. fall  u ARIZONA  v  1940-07-21  ELZADA U. CLOVER Ga?HD   $ engelm.  n OPUNTIA    PHAEACANTHA  ,U;Z     G COCONINO   K[yv 1644019 Caryophyllales *   5224 b5 Mb    ( coming out mo&stly onlower[ joints United States )+h 
{"catalogNumber": "1644019", "order": "Caryophyllales", "family": "Cactaceae", "scientificName": "Opuntia phaeacantha", "scientificNameAuthorship": "Engelm.", "genus": "Opuntia", "subgenus": "", "specificEpithet": "phaeacantha", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Elzada U. Clover", "recordNumber": "5224", "verbatimEventDate": "1940-07-21", "habitat": "coming out mostly on lower joints", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Arizona", "county": "Coconino", "municipality": "", "locality": "near 50 ft. fall", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}