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": ""}
 oak woods U$8   (L.) G.Y L. Nes0m _5)     T j-h 1514157   1971 Ujz     UgLF r1e, t5s, s13, ne1/4 of ne1/4 w. of grassy lake, woodstock twp.      ROBERT W. SMITH JWcUF         _G5 < symphyotrichum cordifolium   8d:8e DAVID WARNERS 
{"catalogNumber": "1514157", "order": "", "family": "", "scientificName": "Symphyotrichum cordifolium", "scientificNameAuthorship": "(L.) G. L. Nesom", "genus": "", "subgenus": "", "specificEpithet": "", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "David Warners", "recordedBy": "Robert W. Smith", "recordNumber": "1971", "verbatimEventDate": "", "habitat": "oak woods", "occurrenceRemarks": "", "associatedTaxa": "", "country": "", "stateProvince": "", "county": "", "municipality": "", "locality": "R1E, T5S, S13, ne1/4 of ne1/4 w. of Grassy Lake, Woodstock Twp.", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}