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": ""}
   ke  1644622      1940-05  6z   United States 2b     -?,; caryophyllales   @ MICHIGAN     t%M no data  D cereus  r spegazzinii  F^vb Cereus spegazzini    pbW ORIGINAL ACCESSION DATA: SENT BY HOWARD GATES; CACTS NURSERY, CALIF (ANAHEIM)   WCg!C f.a.c. weber
{"catalogNumber": "1644622", "order": "Caryophyllales", "family": "", "scientificName": "Cereus spegazzinii", "scientificNameAuthorship": "F.A.C. Weber", "genus": "Cereus", "subgenus": "", "specificEpithet": "spegazzinii", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "", "recordNumber": "", "verbatimEventDate": "1940-05", "habitat": "", "occurrenceRemarks": "Original accession data: Sent by Howard Gates; Cactus nursery, Calif (Anaheim)", "associatedTaxa": "", "country": "United States", "stateProvince": "Michigan", "county": "no data", "municipality": "", "locality": "", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}