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": ""}
    pilosum    ^ H^ INGHAM  1966-09-18 a7.     C5!< Fence Row - ASTERALES ;;T    120 ,  VAR.     Asteraceae  K&NR   symphyotrichum pilosum var. pilosum `T      pilosum F ^t   1251577 H| ~C  michigan j 
{"catalogNumber": "1251577", "order": "Asterales", "family": "Asteraceae", "scientificName": "Symphyotrichum pilosum var. pilosum", "scientificNameAuthorship": "", "genus": "", "subgenus": "", "specificEpithet": "pilosum", "verbatimTaxonRank": "var.", "infraspecificEpithet": "pilosum", "identifiedBy": "", "recordedBy": "", "recordNumber": "120", "verbatimEventDate": "1966-09-18", "habitat": "Fence Row -", "occurrenceRemarks": "", "associatedTaxa": "", "country": "", "stateProvince": "Michigan", "county": "Ingham", "municipality": "", "locality": "", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}