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": ""}
 JOHN H. EHLERS vu   -86.030346 =   hIM65 oakes & tuck.   H6G Poales  RAk3 45.96818 Juncus x_Gq     united states  schoolcraft U]  MICHIGAN X(7D    -x  P GREENEI  JUNCACEAE YRr(    Xc e 1336431   9^#? 4221 Juncus greenei C_s   1929-08-27 Ml     N[+m Margin of Pond. 
{"catalogNumber": "1336431", "order": "Poales", "family": "Juncaceae", "scientificName": "Juncus greenei", "scientificNameAuthorship": "Oakes & Tuck.", "genus": "Juncus", "subgenus": "", "specificEpithet": "greenei", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "John H. Ehlers", "recordNumber": "4221", "verbatimEventDate": "1929-08-27", "habitat": "Margin of Pond.", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Michigan", "county": "Schoolcraft", "municipality": "", "locality": "", "decimalLatitude": "45.96818", "decimalLongitude": "-86.030346", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}