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": ""}
  occasional |n dry clearing, unshaded. :~2*    Cq CRATAEGUS MARGARETTA      *]f  peter w. fritsch   [ t ROSACEAE    ZcEi ashe 1988-05-22 y   Rosales ne1D    c&T! CRATAEGUS      -84.486027 N8   MKF2u Michigan 
{"catalogNumber": "", "order": "Rosales", "family": "Rosaceae", "scientificName": "Crataegus margaretta", "scientificNameAuthorship": "Ashe", "genus": "Crataegus", "subgenus": "", "specificEpithet": "", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Peter W. Fritsch", "recordNumber": "", "verbatimEventDate": "1988-05-22", "habitat": "Occasional in dry clearing, unshaded.", "occurrenceRemarks": "", "associatedTaxa": "", "country": "", "stateProvince": "Michigan", "county": "", "municipality": "", "locality": "", "decimalLatitude": "", "decimalLongitude": "-84.486027", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}