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": ""}
poaceae Ep5   m. o. malte C. E         Muhlenbergia |n   ottawa  kI2   muhlenbergia mexicana abg   poales _C-bO   ONTARIO ^     GX9 750/22   K(ztc (L.) TRIN. ROCKCLIFFE m~E@Z  mexicana <n)   Fj Canada  12, 1922-08-24  
{"catalogNumber": "", "order": "Poales", "family": "Poaceae", "scientificName": "Muhlenbergia mexicana", "scientificNameAuthorship": "(L.) Trin.", "genus": "Muhlenbergia", "subgenus": "", "specificEpithet": "mexicana", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "M. O. Malte", "recordNumber": "750/22", "verbatimEventDate": "1922-08-24", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "Canada", "stateProvince": "Ontario", "county": "Ottawa", "municipality": "", "locality": "Rockcliffe", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}