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": ""}
 1970-08-31 o  Sand soil. q  [H   E. J. Hill PT                "COMMON" [BUDS ANGLED] [SEE FRUIT COLLEC7ION FOR ADDITIONAL MATERIAL] [DENSE PUBESCENCE ON TERMINAL BUD AND RELATIVELY SHALLOW SINUSES MAY SUGGEST INTROGRESSION FROM Q. VELUTINA. -A. HIPP 2007] $  70-299 @       Quercus k Ep  
{"catalogNumber": "", "order": "", "family": "", "scientificName": "", "scientificNameAuthorship": "E. J. Hill", "genus": "Quercus", "subgenus": "", "specificEpithet": "", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "", "recordNumber": "70-299", "verbatimEventDate": "1970-08-31", "habitat": "Sand soil.", "occurrenceRemarks": "\"Common\" [buds angled] [See Fruit Collection for Additional Material] [Dense pubescence on terminal buds and relatively shallow sinuses may suggest introgression from Q. velutina. -A. Hipp 2007]", "associatedTaxa": "", "country": "", "stateProvince": "", "county": "", "municipality": "", "locality": "", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}