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": ""}
      y1 united staes   MICHIGAN ($      zFA (WAL7ER) TUCK.   NVQ  1937-09-24   Washtenaw Lbp7[   1304937 > w       e perennans frederick j. hermann 6ojUb    POACEAE K   7]I -83.757181
{"catalogNumber": "1304937", "order": "", "family": "Poaceae", "scientificName": "", "scientificNameAuthorship": "(Walter) Tuck.", "genus": "", "subgenus": "", "specificEpithet": "perennans", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Frederick J. Hermann", "recordNumber": "", "verbatimEventDate": "1937-09-24", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Michigan", "county": "Washtenaw", "municipality": "", "locality": "", "decimalLatitude": "", "decimalLongitude": "-83.757181", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}