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": ""}
 r & MVHLENBERGIA       1918-09-19  LQ ^  S.N. ~ N   2;%Sw shanghai pit, superior twp.    =*3 mexicana   [ 1239211  Y -83.647845 42.273383 G    dU%? Edward G. Voss  (l.) trin.  !L  WASHTENAW Jd @      poales Ezz>d  united states  ]/  
{"catalogNumber": "1239211", "order": "Poales", "family": "", "scientificName": "", "scientificNameAuthorship": "(L.) Trin.", "genus": "Muhlenbergia", "subgenus": "", "specificEpithet": "mexicana", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "Edward G. Voss", "recordedBy": "", "recordNumber": "s.n.", "verbatimEventDate": "1918-09-19", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "", "county": "Washtenaw", "municipality": "", "locality": "Shanghai Pit, Superior Twp.", "decimalLatitude": "42.273383", "decimalLongitude": "-83.647845", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}