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": ""}
 4? R asteraceae    gigant ea z$7    SOLIDAGO GIGANTEA K.I   1256932  )       f6  asterales      MQs ann arbor  MICHIGAN ?-       -83.726329 "about 5â° high< root leaves similar to those of upper stem" [scripsit m.w. harrington] B+ 5=   
{"catalogNumber": "1256932", "order": "Asterales", "family": "Asteraceae", "scientificName": "Solidago gigantea", "scientificNameAuthorship": "", "genus": "", "subgenus": "", "specificEpithet": "gigantea", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "", "recordNumber": "", "verbatimEventDate": "", "habitat": "", "occurrenceRemarks": "\"About 5\u00c2\u00b0 high Root leaves similar to those of upper stem\" [scripsit M.W. Harrington]", "associatedTaxa": "", "country": "", "stateProvince": "Michigan", "county": "", "municipality": "", "locality": "Ann Arbor", "decimalLatitude": "", "decimalLongitude": "-83.726329", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}