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": ""}
 1999-07-16 R    ~* eleocharis elliptica  /S43 Poacles   d 1397359   Near Spring Hill Road and railroad tracks, town of Sandwich. 1       )) united sta7es  vn K 9  KUNTH  :    $6; cyperaceae peter f. zika +_i  elliptica ^`yQ    13904 <23   MASSACHUSETTS *y%7  
{"catalogNumber": "1397359", "order": "Poales", "family": "Cyperaceae", "scientificName": "Eleocharis elliptica", "scientificNameAuthorship": "Kunth", "genus": "", "subgenus": "", "specificEpithet": "elliptica", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Peter F. Zika", "recordNumber": "13904", "verbatimEventDate": "1999-07-16", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Massachusetts", "county": "", "municipality": "", "locality": "Near Spring Hill Road and railroad tracks, town of Sandwich.", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "9", "maximumElevationInMeters": ""}