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": ""}
carex praticola <6+     1383983 7&     q Lincoln  k 497   Q: CAREX   ~ Poales   LMP Midvale.  Ia; 1903-07-23  pr4ticola %_aTg  RYDB. OO5bI     xf united states  8 L. M. Umbach    
{"catalogNumber": "1383983", "order": "Poales", "family": "", "scientificName": "Carex praticola", "scientificNameAuthorship": "Rydb.", "genus": "Carex", "subgenus": "", "specificEpithet": "praticola", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "L. M. Umbach", "recordNumber": "497", "verbatimEventDate": "1903-07-23", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "", "county": "Lincoln", "municipality": "", "locality": "Midvale.", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}