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": ""}
1998-06-13 ABsc          .cA( carex gravida   etdk Iowa            +L poales  (M united states   $HN 41â° 21' n 91â° 29' 15" w; trs: t76n r6w sezc 36 ne1/4 o_f ne1/4   !8Rw 1372056 gravida ~ZBJ 
{"catalogNumber": "1372056", "order": "Poales", "family": "", "scientificName": "Carex gravida", "scientificNameAuthorship": "", "genus": "", "subgenus": "", "specificEpithet": "gravida", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "", "recordNumber": "", "verbatimEventDate": "1998-06-13", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Iowa", "county": "", "municipality": "", "locality": "", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "41\u00c2\u00b0 21' N 91\u00c2\u00b0 29' 15\" W; TRS: T76N R6W sec 36 NE1/4 of NE1/4", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}