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": ""}
s.n.  @b   POA z  [ex herb. w.h. leggett] sjW    Db J Poaceae  u%=Q L.  _ annua   lWZ3 GENESEE edward g. voss ?   [ 43.012527 poa annua      Daniel Clarke bR  Poales T=      Acl! 1315023 -83.687456 =H    united states $y_   l#oR4 FLINT MICHIGAN ?K 
{"catalogNumber": "1315023", "order": "Poales", "family": "Poaceae", "scientificName": "Poa annua", "scientificNameAuthorship": "L.", "genus": "Poa", "subgenus": "", "specificEpithet": "annua", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "Edward G. Voss", "recordedBy": "Daniel Clarke", "recordNumber": "s.n.", "verbatimEventDate": "", "habitat": "", "occurrenceRemarks": "[Ex herb. W.H. Leggett]", "associatedTaxa": "", "country": "United States", "stateProvince": "Michigan", "county": "Genesee", "municipality": "", "locality": "Flint", "decimalLatitude": "43.012527", "decimalLongitude": "-83.687456", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}