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": ""}
   1930-08-18 ~   2743 pQ7 L     OPI-q Poales  r. br. SX      4 WALTER N. KELZ imachal pradesh fm.wK    TARLOKNATH T   1489385 z-t    O chamba  ZsM1r Pond     e Eleocharis 
{"catalogNumber": "1489385", "order": "Poales", "family": "", "scientificName": "Eleocharis", "scientificNameAuthorship": "R. Br.", "genus": "", "subgenus": "", "specificEpithet": "", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Walter N. Koelz", "recordNumber": "", "verbatimEventDate": "1930-08-18", "habitat": "Pond", "occurrenceRemarks": "", "associatedTaxa": "", "country": "", "stateProvince": "Himachal Pradesh", "county": "Chamba", "municipality": "", "locality": "Tarloknath", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "2743", "maximumElevationInMeters": ""}