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": ""}
  Ay(+- "EIGHT TREES & SHRUBS." washtenaw k Vni     h| 1973-09-14  ayw nutt.   wBkO1 United States Celtis ,   G michigan  z~t i tenuifolia  1318390 5    -83.950873 qa+    ,8f rosales    ba Celtis tenuifolia  42.391875 -ap!  warren h. wagner, jr. R     
{"catalogNumber": "1318390", "order": "Rosales", "family": "", "scientificName": "Celtis tenuifolia", "scientificNameAuthorship": "Nutt.", "genus": "Celtis", "subgenus": "", "specificEpithet": "tenuifolia", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Warren H. Wagner, Jr.", "recordNumber": "", "verbatimEventDate": "1973-09-14", "habitat": "", "occurrenceRemarks": "\"Eight trees & shrubs.\"", "associatedTaxa": "", "country": "United States", "stateProvince": "Michigan", "county": "Washtenaw", "municipality": "", "locality": "", "decimalLatitude": "42.391875", "decimalLongitude": "-83.950873", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}