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": ""}
1981-05-16 r    vX5 Pickens  (d%~ muhl. ex willd.  E_!az Carex  Wl A) lupulina    OP  united states     5&yn> CAREX LUPULINA      K2h- alabama       1 mi w pickensville, along the tenn-tom wsaterway. $@   
{"catalogNumber": "", "order": "", "family": "", "scientificName": "Carex lupulina", "scientificNameAuthorship": "Muhl. ex Willd.", "genus": "Carex", "subgenus": "", "specificEpithet": "lupulina", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "", "recordNumber": "", "verbatimEventDate": "1981-05-16", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Alabama", "county": "Pickens", "municipality": "", "locality": "1 mi W Pickensville, along the Tenn-Tom Waterway.", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}