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": ""}
   $~ CALIFORNIA    aVH 1697     E9 contact um herbarium   (LEDEB.) SCHULT.h Nrz=      POACEAE G T&Q   n?G united states   1416328 g  Mary F. Spencer Ai   CG)J Koeleria   MACRANTHA ?1    X POALES  1921-06-06 bZ 
{"catalogNumber": "1416328", "order": "Poales", "family": "Poaceae", "scientificName": "", "scientificNameAuthorship": "(Ledeb.) Schult.", "genus": "Koeleria", "subgenus": "", "specificEpithet": "macrantha", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Mary F. Spencer", "recordNumber": "1697", "verbatimEventDate": "1921-06-06", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "California", "county": "", "municipality": "", "locality": "Contact UM Herbarium", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}