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": ""}
  19.9483 z7    Muhlenbergia ciliata  S(:   ~ -103.729 20552 F$   j Poaceae  P.M. PETERSON  +      (Kunth) Trin., 1824 O   1960-11-01 z.:       ROGERS MCVAUGH P*L      
{"catalogNumber": "", "order": "", "family": "Poaceae", "scientificName": "Muhlenbergia ciliata", "scientificNameAuthorship": "(Kunth) Trin., 1824", "genus": "", "subgenus": "", "specificEpithet": "", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "P.M. Peterson", "recordedBy": "Rogers McVaugh", "recordNumber": "20552", "verbatimEventDate": "1960-11-01", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "", "stateProvince": "", "county": "", "municipality": "", "locality": "", "decimalLatitude": "19.9483", "decimalLongitude": "-103.729", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}