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": ""}
      B united states   MY6f cristatella       Nvh Carex cristatella POALES ~HF|f   M! x shallow and fast with clay banks.   6X 1961-07-11  f-V -84.162847     Py  45.359992   Carex i|V    
{"catalogNumber": "", "order": "Poales", "family": "", "scientificName": "Carex cristatella", "scientificNameAuthorship": "", "genus": "Carex", "subgenus": "", "specificEpithet": "cristatella", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "", "recordNumber": "", "verbatimEventDate": "1961-07-11", "habitat": "Shallow and fast with clay banks.", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "", "county": "", "municipality": "", "locality": "", "decimalLatitude": "45.359992", "decimalLongitude": "-84.162847", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}