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. 3lTT    ^7 P Walter N. Koelz  7653 t   ~)b karachi  ,VbP Pakistan    Landhi OR 7    1489202 2Yx       D^ Cyperus conglomeratus   CYPERACEAE g3CC      CONGLOMERATUS   
{"catalogNumber": "1489202", "order": "", "family": "Cyperaceae", "scientificName": "Cyperus conglomeratus", "scientificNameAuthorship": "Rottb.", "genus": "", "subgenus": "", "specificEpithet": "conglomeratus", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Walter N. Koelz", "recordNumber": "7653", "verbatimEventDate": "", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "Pakistan", "stateProvince": "", "county": "Karachi", "municipality": "", "locality": "Landhi", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}