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": ""}
 X(! steven p. grund       42.28188 kl?r0Z    BIDENS 3/f2  "assoc.: ulmus amer., robinia pseudo., urtica dioicia, leersia virginca, polygonum punctatum" ,4M    O Bidens frondosa    1994-09-28 R  michigan  K       4 1252A398   Kalamazoo `~mZ 
{"catalogNumber": "1252398", "order": "", "family": "", "scientificName": "Bidens frondosa", "scientificNameAuthorship": "", "genus": "Bidens", "subgenus": "", "specificEpithet": "", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Steven P. Grund", "recordNumber": "", "verbatimEventDate": "1994-09-28", "habitat": "", "occurrenceRemarks": "\"Assoc.: Ulmus amer., Robinia pseudo., Urtica dioicia, Leersia virginca, Polygonum punctatum\"", "associatedTaxa": "", "country": "", "stateProvince": "Michigan", "county": "Kalamazoo", "municipality": "", "locality": "", "decimalLatitude": "42.28188", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}