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": ""}
 kent WdN      50 mollis ROSACEAE Lxa@        a R 1945-09-10 michigan (    9_Y CRATAErGUS MOLLIS VAR. SERA United States ` z8i   (SARG.) EGGL. n   var. ,    6815 )p!     8* Ernest J. Palmer
{"catalogNumber": "", "order": "", "family": "Rosaceae", "scientificName": "Crataegus mollis var. sera", "scientificNameAuthorship": "(Sarg.) Eggl.", "genus": "", "subgenus": "", "specificEpithet": "mollis", "verbatimTaxonRank": "var.", "infraspecificEpithet": "", "identifiedBy": "Ernest J. Palmer", "recordedBy": "", "recordNumber": "6815", "verbatimEventDate": "1945-09-10", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Michigan", "county": "Kent", "municipality": "", "locality": "", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}