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": ""}
   uB? united states CALIFORNIA  7     1914-04-20 e=OYO  @ POALES  WrQ (Leeb.) Schult.    CONTACT UM HERBARIUM Yrrx=     NmP poaceae   MACRANTHA ;S   jO 1416329 294 N    koeleria macrantha  X   
{"catalogNumber": "1416329", "order": "Poales", "family": "Poaceae", "scientificName": "Koeleria macrantha", "scientificNameAuthorship": "(Ledeb.) Schult.", "genus": "", "subgenus": "", "specificEpithet": "macrantha", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "", "recordNumber": "294", "verbatimEventDate": "1914-04-20", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "California", "county": "", "municipality": "", "locality": "Contact UM Herbarium", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}