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": ""}
 Ku 1961-05-21   j*  -84.01614    BRASSICALES        1= MICHIGAN  1560256 hQU  Center of auto trail. Sfoil: dry sand. Associes: Taraxacum officinale, Poa compressa. 6M    (L.) HEYNH. K<     thaliana r; m        
{"catalogNumber": "1560256", "order": "Brassicales", "family": "", "scientificName": "", "scientificNameAuthorship": "(L.) Heynh.", "genus": "", "subgenus": "", "specificEpithet": "thaliana", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "", "recordNumber": "", "verbatimEventDate": "1961-05-21", "habitat": "Center of auto trail. Soil: dry sand. Associes: Taraxacum officinale, Poa compressa.", "occurrenceRemarks": "", "associatedTaxa": "", "country": "", "stateProvince": "Michigan", "county": "", "municipality": "", "locality": "", "decimalLatitude": "", "decimalLongitude": "-84.01614", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}