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": ""}
    agrostis z  UNITED STATES  R    AGROSTIS EXARATA w!+  945 HySn@   JI TRIN.  O 1945-08-22  Aleutians West )~  [   many basal leaves. blades flat. penicle erect, closed, purplish brown. c   t Alaska j`t Poales    1403347 PRM   8)p george b. van schaack  ~/i g DENSELY TUFTED IN SAND NEAR BEACH.  ? POACEAE attu island, holtz bay; west arm  (   
{"catalogNumber": "1403347", "order": "Poales", "family": "Poaceae", "scientificName": "Agrostis exarata", "scientificNameAuthorship": "Trin.", "genus": "Agrostis", "subgenus": "", "specificEpithet": "", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "George B. Van Schaack", "recordNumber": "945", "verbatimEventDate": "1945-08-22", "habitat": "Densely tufted in sand near beach.", "occurrenceRemarks": "Many basal leaves. Blades flat. Penicle erect, closed, purplish brown.", "associatedTaxa": "", "country": "United States", "stateProvince": "Alaska", "county": "Aleutians West", "municipality": "", "locality": "Attu Island, Holtz Bay; West Arm", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}