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": ""}
  +O c 1517616   )Y north of dollar swamp. grid k-10, george reserve. Populus 6$x M      livimgston Hq?XV  salicaceae #~v     85 w. bartram ex marshall      b[N4x DELTOIDES  Populus deltoides W    dg 3749   malpighiales gQP8     AGY<8 1958-07-07 
{"catalogNumber": "1517616", "order": "Malpighiales", "family": "Salicaceae", "scientificName": "Populus deltoides", "scientificNameAuthorship": "W. Bartram ex Marshall", "genus": "Populus", "subgenus": "", "specificEpithet": "deltoides", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "", "recordNumber": "3749", "verbatimEventDate": "1958-07-07", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "", "stateProvince": "", "county": "Livingston", "municipality": "", "locality": "north of Dollar Swamp. Grid K-10, George Reserve.", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}