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": ""}
 Rottb. 0     V>> - 1714990   t @J 3658  POALES C ?c   Q  south central coast  . ol4 cyperus polystachyos var. polystachyos POLYSTACHYOS $4p   6 POLYSTACHYOS  : 1927-05  9 VIETNAM  _uY Cyperus  ANNAM, INDO-CHINA, TOURANE AND VICINITY ipsB7  vacant lots o?   < d4p /J. & M. S. Clemens  da nang h 9  cyperaceae PaA    &Kj/ vr.
{"catalogNumber": "1714990", "order": "Poales", "family": "Cyperaceae", "scientificName": "Cyperus polystachyos var. polystachyos", "scientificNameAuthorship": "Rottb.", "genus": "Cyperus", "subgenus": "", "specificEpithet": "polystachyos", "verbatimTaxonRank": "var.", "infraspecificEpithet": "polystachyos", "identifiedBy": "", "recordedBy": "J. & M. S. Clemens", "recordNumber": "3658", "verbatimEventDate": "1927-05", "habitat": "vacant lots", "occurrenceRemarks": "", "associatedTaxa": "", "country": "Vietnam", "stateProvince": "South Central Coast", "county": "Da Nang", "municipality": "", "locality": "Annam, Indo-China, Tourane and Vicinity", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}