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 1918-09-24  qD zg 3418   z poales     GUANGDONG d;    POACEAE 5o&   1706617 z        TYD guangzhou   ` (All.) Vignolo ek Janch. E. D. Merrill @ ;  China YH&[  Eragrostis -?   Zp Ep cilianensis  
{"catalogNumber": "1706617", "order": "Poales", "family": "Poaceae", "scientificName": "", "scientificNameAuthorship": "(All.) Vignolo ex Janch.", "genus": "Eragrostis", "subgenus": "", "specificEpithet": "cilianensis", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "E. D. Merrill", "recordNumber": "3418", "verbatimEventDate": "1918-09-24", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "China", "stateProvince": "Guangdong", "county": "Guangzhou", "municipality": "", "locality": "", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}