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": ""}
  6?  United States        ` M=% colorado (MICHX.) BRITTON, STERNS & POGGEB. z?  1939-09-04  V n   J+L POACEAE   7& 1418006  K[: racemosa   Muhlenbergia  L Q    K 7929  El Paso O      J. H. EHLERS MUHLENBERGIA RACEMOSA iIzM   
{"catalogNumber": "1418006", "order": "", "family": "Poaceae", "scientificName": "Muhlenbergia racemosa", "scientificNameAuthorship": "(Michx.) Britton, Sterns & Poggenb.", "genus": "Muhlenbergia", "subgenus": "", "specificEpithet": "racemosa", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "J. H. Ehlers", "recordNumber": "7929", "verbatimEventDate": "1939-09-04", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Colorado", "county": "El Paso", "municipality": "", "locality": "", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}