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": ""}
   : u 1991-07-30 -84.76751 s V j  isabella 75 ?   Chondrilla N9   asteraceae p5K    b ASTERALES     TJ~. ALONG ROADSIDE VERGE  United States 63y    ledeb. dF$yI            
{"catalogNumber": "", "order": "Asterales", "family": "Asteraceae", "scientificName": "", "scientificNameAuthorship": "Ledeb.", "genus": "Chondrilla", "subgenus": "", "specificEpithet": "", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "", "recordNumber": "", "verbatimEventDate": "1991-07-30", "habitat": "Along roadside verge", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "", "county": "Isabella", "municipality": "", "locality": "", "decimalLatitude": "", "decimalLongitude": "-84.76751", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}