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": ""}
  ;Z Sonchus asper  0  michigan     LENAWEE `c   781 P   at Bohn Pool, City of Adrian ?    t 1257914  Pc+ Sonchus  zN!/| WEED OUTSIDE BUILDING  * t robert w. smith   UNITED STATES u h    ASTERALES  v2Ka    1985-0-17 MJAPr   (l.) hill A~  
{"catalogNumber": "1257914", "order": "Asterales", "family": "", "scientificName": "Sonchus asper", "scientificNameAuthorship": "(L.) Hill", "genus": "Sonchus", "subgenus": "", "specificEpithet": "", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Robert W. Smith", "recordNumber": "781", "verbatimEventDate": "1985-06-17", "habitat": "weed outside building", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Michigan", "county": "Lenawee", "municipality": "", "locality": "at Bohn Pool, City of Adrian", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}