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 SAN MATEO Crystal Springs Lake O|   < nassella mucronata    vx>_  (Kunth) R.W.Pohl  ?; 4712    poaceae AQ?  MUCRONATA _7      QL7 1903-06 Nassella sO  X     poales  `  United States Xm    (xsW ADOLPH D.E. ELMER  K  1418455  california 0@  
{"catalogNumber": "1418455", "order": "Poales", "family": "Poaceae", "scientificName": "Nassella mucronata", "scientificNameAuthorship": "(Kunth) R.W.Pohl", "genus": "Nassella", "subgenus": "", "specificEpithet": "mucronata", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Adolph D.E. Elmer", "recordNumber": "4712", "verbatimEventDate": "1903-06", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "California", "county": "San Mateo", "municipality": "", "locality": "Crystal Springs Lake", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}