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": ""}
  1304921 BG    NCA -87.798493   1960-09-09 %J  209       y$V MICHIGAN 46.848474 Rpe,    A.G. ETTER m)x@    7:7 3 agrostis    wy  2 Marq)uette SALMON TROUT RIVER; HURON MOUNTAIN CLUB .B   ,R poaceae  Agrostis perennans C   ).J  perennans rocks in river bed, middle falls. Y$G& 
{"catalogNumber": "1304921", "order": "", "family": "Poaceae", "scientificName": "Agrostis perennans", "scientificNameAuthorship": "", "genus": "Agrostis", "subgenus": "", "specificEpithet": "perennans", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "A.G. Etter", "recordNumber": "209", "verbatimEventDate": "1960-09-09", "habitat": "rocks in river bed, middle falls.", "occurrenceRemarks": "", "associatedTaxa": "", "country": "", "stateProvince": "Michigan", "county": "Marquette", "municipality": "", "locality": "Salmon Trout River; Huron Mountain Club", "decimalLatitude": "46.848474", "decimalLongitude": "-87.798493", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}