query: SELECT
    (SAMPLE(?item2) as ?item)
    ?soundex
    (GROUP_CONCAT(DISTINCT ( CONCAT("[[",strafter(str(?item2),"y/"),"|",?nl,"]]")) ; separator=", " ) as ?names)
  WHERE
  {
      ?item2 wdt:P31 wd:Q101352 ; wdt:P1705 ?nl ; wdt:P3878 ?soundex .
      FILTER(substr(?soundex,1,1)="K")
  }
  GROUP BY ?soundex
  ORDER BY ?soundex