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": ""}
Poaceae 8        Michx. 8      u ( -73.3979  1867 >Kj/S      c1%* 1418571    Z EAST GREENWICH  Bc Poales  $9~ 6 UNITED STATES    Lx Asa Fitch  kQ 43.1455   f s.n.
{"catalogNumber": "1418571", "order": "Poales", "family": "Poaceae", "scientificName": "", "scientificNameAuthorship": "Michx.", "genus": "", "subgenus": "", "specificEpithet": "", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Asa Fitch", "recordNumber": "s.n.", "verbatimEventDate": "1867", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "", "county": "", "municipality": "", "locality": "East Greenwich", "decimalLatitude": "43.1455", "decimalLongitude": "-73.3979", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}