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 ?:   1124939 n/W/p    H J 1959-10-06 J. Graham & M. Johnston .!eI      5 4166  WXd> contact um herbarium  KN rigens  p MUHLENBERGIA      mexico kH       (benth.) a.s. hitchc. *   
{"catalogNumber": "1124939", "order": "", "family": "Poaceae", "scientificName": "", "scientificNameAuthorship": "(Benth.) A.S. Hitchc.", "genus": "Muhlenbergia", "subgenus": "", "specificEpithet": "rigens", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "J. Graham & M. Johnston", "recordNumber": "4166", "verbatimEventDate": "1959-10-06", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "Mexico", "stateProvince": "", "county": "", "municipality": "", "locality": "Contact UM Herbarium", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}