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": ""}
19.1969 g;T m      B g$ poales R.B. SHAW 4_9x    -103.672 z      POACEAE AQ    yGQ3e 1121865 nelsonii fph        var. ?Y   v!pF NELSONII  MEXICO  Rv/>   jLc l. harvey & j. witherspoon
{"catalogNumber": "1121865", "order": "Poales", "family": "Poaceae", "scientificName": "", "scientificNameAuthorship": "", "genus": "", "subgenus": "", "specificEpithet": "nelsonii", "verbatimTaxonRank": "var.", "infraspecificEpithet": "nelsonii", "identifiedBy": "R.B. Shaw", "recordedBy": "L. Harvey & J. Witherspoon", "recordNumber": "", "verbatimEventDate": "", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "Mexico", "stateProvince": "", "county": "", "municipality": "", "locality": "", "decimalLatitude": "19.1969", "decimalLongitude": "-103.672", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}