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": ""}
         a ANTENNARIA  ZME PORCUPINE MTS.  U 2868  V._` asteraceae Michiga (  ontonagon  @    * UNITED STATES  46.76661       `U  1950-0-28 CHARLES D. RICHARDS  l     ep<Z (greene) r. j. bayer   h T / -89.75016  P+`>5 antennaria howellii subsp. canadensis   HOWELLII o_ m  
{"catalogNumber": "", "order": "", "family": "Asteraceae", "scientificName": "Antennaria howellii subsp. canadensis", "scientificNameAuthorship": "(Greene) R. J. Bayer", "genus": "Antennaria", "subgenus": "", "specificEpithet": "howellii", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Charles D. Richards", "recordNumber": "2868", "verbatimEventDate": "1950-05-28", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Michigan", "county": "Ontonagon", "municipality": "", "locality": "Porcupine Mts.", "decimalLatitude": "46.76661", "decimalLongitude": "-89.75016", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}