Name the island with the longest distance from the river mouth from Oryahovo Municipality
select ?ent where { ?ent wdt:P31 wd:Q23442 . ?ent wdt:P2148 ?obj . ?ent wdt:P131 wd:Q2628864 } ORDER BY DESC(?obj)LIMIT 5 
island: Q23442 oryahovo municipality: Q2628864