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": ""}
     |sq  poales  CYPERACEAE c2  1996-04-12 |   NIGAOMARGINATA ([Q  trs: t13n r26w sec 7 nw4 DB*t   PHILIP E. HYATT =   Arkansas (v0Rs    6904 h      Carex 1f     ~ united states 
{"catalogNumber": "", "order": "Poales", "family": "Cyperaceae", "scientificName": "", "scientificNameAuthorship": "", "genus": "Carex", "subgenus": "", "specificEpithet": "nigromarginata", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Philip E. Hyatt", "recordNumber": "6904", "verbatimEventDate": "1996-04-12", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Arkansas", "county": "", "municipality": "", "locality": "", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "TRS: T13N R26W sec 7 NW4", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}