query: SELECT
  ?item
  ?orig
  ?start
  (group_concat(?crossingOf;separator=" × ") as ?crossing)
  WHERE {
    ?item wdt:P31  wd:Q15731356 .
    ?item wdt:P279 wd:Q89       .
    ?item wdt:P366 wd:Q48803    .
  
    OPTIONAL { ?item wdt:P495   ?orig       . }
    OPTIONAL { ?item wdt:P580   ?start      . }
    OPTIONAL { ?item wdt:P1531   ?crossingOf . }
  }
  GROUP BY ?item ?orig ?start
  ORDER BY DESC(?start)