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": ""}
    Sonchus C4kwP   L 850  3CA [HEADS A LITTLE SMALL]  uiGY/ United States   MICHIGAN t2D&0     tjF  45.40752    presque isle b     o4 ASTERACfEAE ASTERALES k   257870 dr    
{"catalogNumber": "1257870", "order": "Asterales", "family": "Asteraceae", "scientificName": "", "scientificNameAuthorship": "", "genus": "Sonchus", "subgenus": "", "specificEpithet": "", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "", "recordNumber": "850", "verbatimEventDate": "", "habitat": "", "occurrenceRemarks": "[heads a little small]", "associatedTaxa": "", "country": "United States", "stateProvince": "Michigan", "county": "Presque Isle", "municipality": "", "locality": "", "decimalLatitude": "45.40752", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}