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": ""}
    GRAND ISLAND, SHORE IN SECT. 15, T7N R19W.    erigeron j   vO "Scarce, rays white ."  eGGiq united states     46.47085 nns   ASTERACEAE  x        MUHL. EX WILLD. ++kza  Erigeron strigosus K    O  V -86.66953  
{"catalogNumber": "", "order": "", "family": "Asteraceae", "scientificName": "Erigeron strigosus", "scientificNameAuthorship": "Muhl. ex Willd.", "genus": "Erigeron", "subgenus": "", "specificEpithet": "", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "", "recordNumber": "", "verbatimEventDate": "", "habitat": "", "occurrenceRemarks": "\"Scarce, rays white.\"", "associatedTaxa": "", "country": "United States", "stateProvince": "", "county": "", "municipality": "", "locality": "Grand Island, shore in sect. 15, T47N R19W.", "decimalLatitude": "46.47085", "decimalLongitude": "-86.66953", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}