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": ""}
t.r. soderstrom 6    CONTACT UM HERBARIUM    1124938 Q_n!           (Benth.) A.S. Hitchc. _h    4^T9 MUHLENBERGIA RIGENS  Poales 4    NUA*o muhlenbergia   >|= mexico    1933-10-20 (VE   rigens Y   V K Poaceae 
{"catalogNumber": "1124938", "order": "Poales", "family": "Poaceae", "scientificName": "Muhlenbergia rigens", "scientificNameAuthorship": "(Benth.) A.S. Hitchc.", "genus": "Muhlenbergia", "subgenus": "", "specificEpithet": "rigens", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "T.R. Soderstrom", "recordedBy": "", "recordNumber": "", "verbatimEventDate": "1933-10-20", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "Mexico", "stateProvince": "", "county": "", "municipality": "", "locality": "Contact UM Herbarium", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}