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": ""}
 helianthus $ Z       Section 5, Exeter Twp., Capernall Road near Colf Road. <   HELIANTHUS STRUMOSUS !mAdn      .lH asteraceae    xU 1254240      2z 12043    sC)  1980-08-08 NATHAN W. EASTERLY miTh    
{"catalogNumber": "1254240", "order": "", "family": "Asteraceae", "scientificName": "Helianthus strumosus", "scientificNameAuthorship": "", "genus": "Helianthus", "subgenus": "", "specificEpithet": "", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Nathan W. Easterly", "recordNumber": "12043", "verbatimEventDate": "1980-08-08", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "", "stateProvince": "", "county": "", "municipality": "", "locality": "Section 5, Exeter Twp., Capernall Road near Colf Road.", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}