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": ""}
    L+C SI CHUAN, GUAN XIAN, QINGCHENGSHAN   N CHINA  W 1710881   Y ; wang zhong-tao      1987-08-20 BrP)           zbn setaria    
{"catalogNumber": "1710881", "order": "", "family": "", "scientificName": "", "scientificNameAuthorship": "", "genus": "Setaria", "subgenus": "", "specificEpithet": "", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Wang Zhong-tao", "recordNumber": "", "verbatimEventDate": "1987-08-20", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "China", "stateProvince": "", "county": "", "municipality": "", "locality": "Si Chuan, Guan Xian, Qingchengshan", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}