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": ""}
1948-04-17  /Iaj    0/U Poaceae  Jason R. Swallen aT7Bi    howard s. gentry W  (kunth) kunth v  virescens  -l~   poales ke2 ~   Mexico vj         PF muhlenbergia virescens  !W 1125303   MUHLENBRGIA  Fx   o| CONTACT UM HERBARIUM 
{"catalogNumber": "1125303", "order": "Poales", "family": "Poaceae", "scientificName": "Muhlenbergia virescens", "scientificNameAuthorship": "(Kunth) Kunth", "genus": "Muhlenbergia", "subgenus": "", "specificEpithet": "virescens", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "Jason R. Swallen", "recordedBy": "Howard S. Gentry", "recordNumber": "", "verbatimEventDate": "1948-04-17", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "Mexico", "stateProvince": "", "county": "", "municipality": "", "locality": "Contact UM Herbarium", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}