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": ""}
   COMMON ON R.R. BALLAST S6=U    ^ 1309565 BROMUS COMMUTATUS  Z 1  bromus Jo Xy     i commutatus  4630 r<et   EDWARD G. VOSS k7I9  STANDISH n^;`        Schra4d. 3|c    1 poaceae arenac -    $O 1957-07-11
{"catalogNumber": "1309565", "order": "", "family": "Poaceae", "scientificName": "Bromus commutatus", "scientificNameAuthorship": "Schrad.", "genus": "Bromus", "subgenus": "", "specificEpithet": "commutatus", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Edward G. Voss", "recordNumber": "4630", "verbatimEventDate": "1957-07-11", "habitat": "common on R.R. ballast", "occurrenceRemarks": "", "associatedTaxa": "", "country": "", "stateProvince": "", "county": "Arenac", "municipality": "", "locality": "Standish", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}