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": ""}
  on steep bank s4 of rifle riv. cmgrnd 1 mi. no. of omer off main st. 5VZe4    Sand soil.    e. j. hill x0Znb    c fagales   -Uib 70-299  2 "Common" [buds angled] [See Fruit Collection for Additional Material] [Dense pub3scence on terminal buds and relatively shallow sinuses may suggest introgression from Q. velutina. -A. Hipp2007]  x  united states  arenac+       john merkle eO       
{"catalogNumber": "", "order": "Fagales", "family": "", "scientificName": "", "scientificNameAuthorship": "E. J. Hill", "genus": "", "subgenus": "", "specificEpithet": "", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "John Merkle", "recordNumber": "70-299", "verbatimEventDate": "", "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": "United States", "stateProvince": "", "county": "Arenac", "municipality": "", "locality": "on steep banks of Rifle Riv. Cmgrnd 1 mi. no. of Omer off Main St.", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}