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": ""}
 476B U      z 1976-11-01      MEXICO  Gj252 Muhlenbergia       e muhlenbergia virescens  virescens; hA  Contact UM Herbarium O /X$    poales Kg     R. GUZMÃ¡N MEJÃ­A &k  (KUNTH) KUNTH w^n;  1125305 [7>  poaceae XM: 
{"catalogNumber": "1125305", "order": "Poales", "family": "Poaceae", "scientificName": "Muhlenbergia virescens", "scientificNameAuthorship": "(Kunth) Kunth", "genus": "Muhlenbergia", "subgenus": "", "specificEpithet": "virescens", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "R. Guzm\u00c3\u00a1n Mej\u00c3\u00ada", "recordNumber": "476B", "verbatimEventDate": "1976-11-01", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "Mexico", "stateProvince": "", "county": "", "municipality": "", "locality": "Contact UM Herbarium", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}