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": ""}
 46.52729 8 U  poales &z2  michx. LhxOm   on north side of legion lake.  =Ih    -86.355456 ^ip   CYPERACEAE ?s   MICHIGAN X 1x^   339 osQ  Carex oligosperma 6qdI    B S@ united states    w alger        8 1973-08-12
{"catalogNumber": "", "order": "Poales", "family": "Cyperaceae", "scientificName": "Carex oligosperma", "scientificNameAuthorship": "Michx.", "genus": "", "subgenus": "", "specificEpithet": "", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "", "recordNumber": "339", "verbatimEventDate": "1973-08-12", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Michigan", "county": "Alger", "municipality": "", "locality": "On north side of Legion Lake.", "decimalLatitude": "46.52729", "decimalLongitude": "-86.355456", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}