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": ""}
300 ;-7 B   ? united states  brachyelytrum aristosum 77,D    `b,; T26N, R1E, Sec. 17  p:s (michx.) trel.    BRACHYELYTRUM k`VA  POACEAE R4   1951-07-28      bGlAO UNCOMMON IN SHADED JACK PINE "BOG FOREST"   #8 MICHIGAN         OSCODA  t#xB    NDBb 44.6446
{"catalogNumber": "", "order": "", "family": "Poaceae", "scientificName": "Brachyelytrum aristosum", "scientificNameAuthorship": "(Michx.) Trel.", "genus": "Brachyelytrum", "subgenus": "", "specificEpithet": "", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "", "recordNumber": "300", "verbatimEventDate": "1951-07-28", "habitat": "Uncommon in shaded jack pine \"bog forest\"", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Michigan", "county": "Oscoda", "municipality": "", "locality": "T26N, R1E, Sec. 17", "decimalLatitude": "44.6446", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}