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": ""}
 QWk 6720   k50N Ontario  h8F canada  lambton j%7   ANTON A. REZNICEK M  grassy dunes and open woods on stabiized dunes | quercus velutina e+R,     qv L. PINERY PROVINCIAL PARK NEAR PARK ENTRANCE OFF HWY 21, ABOUT 3 MILES S OF GRAND BEND. NEAR 'CHALET' (FORMER SKI AREA WITH MUCH PAST CLEARING) H]     Cerastium semidecandrum @VW  Caryophyllaceae ?O7|      Scarce at edge of gravel parking lot DT       1982-06-18 +< 
{"catalogNumber": "", "order": "", "family": "Caryophyllaceae", "scientificName": "Cerastium semidecandrum", "scientificNameAuthorship": "L.", "genus": "", "subgenus": "", "specificEpithet": "", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Anton A. Reznicek", "recordNumber": "6720", "verbatimEventDate": "1982-06-18", "habitat": "Grassy dunes and open woods on stabilized dunes | Quercus velutina", "occurrenceRemarks": "Scarce at edge of gravel parking lot", "associatedTaxa": "", "country": "Canada", "stateProvince": "Ontario", "county": "Lambton", "municipality": "", "locality": "Pinery Provincial Park, near park entrance off Hwy 21, about 3 miles S of Grand Bend. Near 'chalet' (former ski area with much past clearing)", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}