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": ""}
leptonervia 4W       6l0   cyperaceae  2129 n   (fernald) fernald A_~V      ( poales   `7S Anton A. Reznicek     B ca. 6Â½ mi. W of Autrain.  ALGER ^<?   LG CAREX LEPTONERVIA  Carex      MICHIGAN   
{"catalogNumber": "", "order": "Poales", "family": "Cyperaceae", "scientificName": "Carex leptonervia", "scientificNameAuthorship": "(Fernald) Fernald", "genus": "Carex", "subgenus": "", "specificEpithet": "leptonervia", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "Anton A. Reznicek", "recordedBy": "", "recordNumber": "2129", "verbatimEventDate": "", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "", "stateProvince": "Michigan", "county": "Alger", "municipality": "", "locality": "ca. 6\u00c2\u00bd mi. W of Autrain.", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}