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": ""}
 riddell tg:   I)F81 COMMON. RAY AND DISC FLWRS YELLOW.  R livingston  ASTERALES T^D9J      PcL-  Helianthus  -83.93472 6sQ       ln  1521   Helianthus occidentalis ;6UZ      ec ASTERACEAE   DfGy michigan    q9 D3xter Twp., Reichert Preserve N of Little Portage Lake. 
{"catalogNumber": "", "order": "Asterales", "family": "Asteraceae", "scientificName": "Helianthus occidentalis", "scientificNameAuthorship": "Riddell", "genus": "Helianthus", "subgenus": "", "specificEpithet": "", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "", "recordNumber": "1521", "verbatimEventDate": "", "habitat": "", "occurrenceRemarks": "Common. Ray and disc flwrs yellow.", "associatedTaxa": "", "country": "", "stateProvince": "Michigan", "county": "Livingston", "municipality": "", "locality": "Dexter Twp., Reichert Preserve N of Little Portage Lake.", "decimalLatitude": "", "decimalLongitude": "-83.93472", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}