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": ""}
  7C 1709704  ~ phragmites australis  (cav.) trin. ek steud. 9  KH   1980 yg     pioaceae 4.`  PHRAGMITES z    u~ POALES australis 5   l NANJING   m CHINA K. S. Chow 3 X         ^5UU Kinngau: Nanking, about the house   A 8 340
{"catalogNumber": "1709704", "order": "Poales", "family": "Poaceae", "scientificName": "Phragmites australis", "scientificNameAuthorship": "(Cav.) Trin. ex Steud.", "genus": "Phragmites", "subgenus": "", "specificEpithet": "australis", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "K. S. Chow", "recordNumber": "8 340", "verbatimEventDate": "1980", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "China", "stateProvince": "", "county": "Nanjing", "municipality": "", "locality": "Kinngau: Nanking, about the house", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}