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": ""}
NORTH LANGDON ~   @2 schkuhr ex willd.  Cs  CYPERACEAE  gT 1430176     7LM s 2423 united states A     O[|< 1904-07-02      )  m+ CAREX  O Poales         : muehlenbergii  Agnes Chase si+  
{"catalogNumber": "1430176", "order": "Poales", "family": "Cyperaceae", "scientificName": "", "scientificNameAuthorship": "Schkuhr ex Willd.", "genus": "Carex", "subgenus": "", "specificEpithet": "muehlenbergii", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Agnes Chase", "recordNumber": "2423", "verbatimEventDate": "1904-07-02", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "", "county": "", "municipality": "", "locality": "North Langdon", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}