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": ""}
   RF S.N. united states 4U  SAXIFRAGALES sx    1223221C       `aw MYRIOPHYLLUM MYRIOPHYLLUM SIBIRICUM    ogemaw VL    F.E. LOCKE c5 A      B Haloragaceae RIFL RIVER g      *-5IC sibiricum   
{"catalogNumber": "1223221", "order": "Saxifragales", "family": "Haloragaceae", "scientificName": "Myriophyllum sibiricum", "scientificNameAuthorship": "", "genus": "Myriophyllum", "subgenus": "", "specificEpithet": "sibiricum", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "F.E. Locke", "recordNumber": "s.n.", "verbatimEventDate": "", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "", "county": "Ogemaw", "municipality": "", "locality": "Rifle River", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}