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": ""}
1973-10-15 8m/     se of junction of mcclure & lowery rds, sylvan twp. eF     C celtis occidentalis  waren h.wagner, jr. bi 9    Washtenaw !vZq    K 1356649 0ccidentalis c    Michigan /HZx    NR L.   m+L 42.33022  "colony of 6 trees in second growth mixed with more abundant celtis tenuifolia. leaves beginning to fall"  0,,^  United States A   Vv(y Celtis   T+ rosaes
{"catalogNumber": "1356649", "order": "Rosales", "family": "", "scientificName": "Celtis occidentalis", "scientificNameAuthorship": "L.", "genus": "Celtis", "subgenus": "", "specificEpithet": "occidentalis", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Warren H. Wagner, Jr.", "recordNumber": "", "verbatimEventDate": "1973-10-15", "habitat": "", "occurrenceRemarks": "\"Colony of 6 trees in second growth mixed with more abundant Celtis tenuifolia. Leaves beginning to fall\"", "associatedTaxa": "", "country": "United States", "stateProvince": "Michigan", "county": "Washtenaw", "municipality": "", "locality": "SE of junction of McClure & Lowery Rds, Sylvan Twp.", "decimalLatitude": "42.33022", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}