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": ""}
 7 east branch of au gres river, 2 m:i. n.w. of mcivor.   IOSCO Y z5     </l h Schkuhr ex Willd.     j*zSu POALES 7247 =  CYPRACEAE 2f6Fo   scoparia &f =E    +YAp R.R. DREISBACH frederick j. hermann f W    1931-07-04 )  ditch. MY^    bclJz 1327711  NBP carex scoparia CAREX a  UNITED STATES 69H   Michigan X.St 
{"catalogNumber": "1327711", "order": "Poales", "family": "Cyperaceae", "scientificName": "Carex scoparia", "scientificNameAuthorship": "Schkuhr ex Willd.", "genus": "Carex", "subgenus": "", "specificEpithet": "scoparia", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "Frederick J. Hermann", "recordedBy": "R.R. Dreisbach", "recordNumber": "7247", "verbatimEventDate": "1931-07-04", "habitat": "Ditch.", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Michigan", "county": "Iosco", "municipality": "", "locality": "East branch of Au Gres River, 2 mi. N.W. of McIvor.", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}