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": ""}
howellii q^G   michigan r t)+   YD_(Z 2980   SUBSP. MT[   [2F 1950-06-09  ] hv 47.372841   Keweenaw *^t`k  -88.313057    Unitd States 2   ? (greene) r. vj. bayer  1249853 XP   R7D( antennaria howellii subsp. c4nadensis    (8  8 at cliff mine. CANADENSIS ka4    Q [some basal leaves 3-veined]   : ASTERACEAE 
{"catalogNumber": "1249853", "order": "", "family": "Asteraceae", "scientificName": "Antennaria howellii subsp. canadensis", "scientificNameAuthorship": "(Greene) R. J. Bayer", "genus": "", "subgenus": "", "specificEpithet": "howellii", "verbatimTaxonRank": "subsp.", "infraspecificEpithet": "canadensis", "identifiedBy": "", "recordedBy": "", "recordNumber": "2980", "verbatimEventDate": "1950-06-09", "habitat": "", "occurrenceRemarks": "[some basal leaves 3-veined]", "associatedTaxa": "", "country": "United States", "stateProvince": "Michigan", "county": "Keweenaw", "municipality": "", "locality": "At Cliff Mine.", "decimalLatitude": "47.372841", "decimalLongitude": "-88.313057", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}