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": ""}
      W 3rv 1976-06-04 WASHTENAW 5    K - United States   < 3965  mill. S6zcL   =R?a malus pumila  ruth 8. alford (macfarlane) =WJQ    _V ROSALES |466731 |         ]rnG) "30-ft tree, 12-in DBH; bark md gray, mottled & chipping; in early fruit."  
{"catalogNumber": "1466731", "order": "Rosales", "family": "", "scientificName": "Malus pumila", "scientificNameAuthorship": "Mill.", "genus": "", "subgenus": "", "specificEpithet": "", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Ruth B. Alford (MacFarlane)", "recordNumber": "3965", "verbatimEventDate": "1976-06-04", "habitat": "", "occurrenceRemarks": "\"30-ft tree, 12-in DBH; bark med gray, mottled & chipping; in early fruit.\"", "associatedTaxa": "", "country": "United States", "stateProvince": "", "county": "Washtenaw", "municipality": "", "locality": "", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}