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": ""}
  5 United States   kWGj  ERIC A. BOURDO, JR. populus 4K  GRANDIDENTATA xU`cP     +?0 ; 1974-08-18     ?CS,  Pitted outwash plains near Big Lake. Th3 big tooth is commoner onI the sandy soils th-an P. Tremuloides.  t7 MICHIGAN   #Kw  baraga   5TV michx.  +W  t49n r33w sec 29   #m|# POPUL=US GRANDIDENTATA  KNJr 46.614901   . s.n. Malpighiales jdi   V -88.460123  @wP; "THIS STAND ORIGINATED AFTER  FIRE. THIS TREE 16" DIAMETEA 80' TALL." [MICH SHEET]  1309952 .ku+C 
{"catalogNumber": "1309952", "order": "Malpighiales", "family": "", "scientificName": "Populus grandidentata", "scientificNameAuthorship": "Michx.", "genus": "Populus", "subgenus": "", "specificEpithet": "grandidentata", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Eric A. Bourdo, Jr.", "recordNumber": "s.n.", "verbatimEventDate": "1974-08-18", "habitat": "Pitted outwash plains near Big Lake. The big tooth is commoner on the sandy soils than P. Tremuloides.", "occurrenceRemarks": "\"This stand originated after a fire. This tree 16\" diameter 80' tall.\" [MICH sheet]", "associatedTaxa": "", "country": "United States", "stateProvince": "Michigan", "county": "Baraga", "municipality": "", "locality": "T49N R33W Sec 29", "decimalLatitude": "46.614901", "decimalLongitude": "-88.460123", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}