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": ""}
NOVA SCOTIA &q b    +  dichanthelium spretum   POACEAE p9     KZ[ spretum CANADA ?gd    (schult.) frecmann ]  8709  k    m DICHANTHELIUM A. A. REZNICEK YHE    Queens ]M   +:j  1990-09-15  poales %    1430955 Onk    WiBx PONHOOK LAKE, SW SIDE OF LAKE CA. 5 KM N OF GREENFIELD 
{"catalogNumber": "1430955", "order": "Poales", "family": "Poaceae", "scientificName": "Dichanthelium spretum", "scientificNameAuthorship": "(Schult.) Freckmann", "genus": "Dichanthelium", "subgenus": "", "specificEpithet": "spretum", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "A. A. Reznicek", "recordNumber": "8709", "verbatimEventDate": "1990-09-15", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "Canada", "stateProvince": "Nova Scotia", "county": "Queens", "municipality": "", "locality": "Ponhook Lake, SW side of lake ca. 5 km N of Greenfield", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}