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": ""}
     !rvN united states   dorthea leisman, emily van saalduinen 2 -  City of Grand Rapids,u ca. 0.4 miles S of 28th Street SE and ca.0.4 miles W of Kalamazoo Ave. SE. Ken-O-Sha+ Park near Ken-O-Sha Element!ary School. Adjacent to Plaster Creek.  e^    Gc t eutrochium   MICHIGAN Gl-+    ckry, Anton A. Reznicek (L.) E. E. Lamont L   EUTROCHIUM MACULATUM EAf[;      2015-07-16 Z_0 _   ASTERALES [iju   
{"catalogNumber": "", "order": "Asterales", "family": "", "scientificName": "Eutrochium maculatum", "scientificNameAuthorship": "(L.) E. E. Lamont", "genus": "Eutrochium", "subgenus": "", "specificEpithet": "", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "Anton A. Reznicek", "recordedBy": "Dorthea Leisman, Emily Van Staalduinen", "recordNumber": "", "verbatimEventDate": "2015-07-16", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Michigan", "county": "", "municipality": "", "locality": "City of Grand Rapids, ca. 0.4 miles S of 28th Street SE and ca. 0.4 miles W of Kalamazoo Ave. SE. Ken-O-Sha Park near Ken-O-Sha Elementary School. Adjacent to Plaster Creek.", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}