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": ""}
1940-07-30 Qk         6RV M 7  ! HL A6ROSTIS GIGANTEA      POALES R_*+   Iv8m ROTH  [ gigantea     X AGROSTIS   6=;,Z dell rapids river bank (near big stone lake) philip johnson V   SOUTH DAKOTA  `h   <v 1403442
{"catalogNumber": "1403442", "order": "Poales", "family": "", "scientificName": "Agrostis gigantea", "scientificNameAuthorship": "Roth", "genus": "Agrostis", "subgenus": "", "specificEpithet": "gigantea", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Philip Johnson", "recordNumber": "7", "verbatimEventDate": "1940-07-30", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "", "stateProvince": "South Dakota", "county": "", "municipality": "", "locality": "Dell Rapids river bank (near Big Stone Lake)", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}