What stainless steel made by ThyssenKrupp has the least durability?
select ?ent where { ?ent wdt:P31 wd:Q172587 . ?ent wdt:P5520 ?obj . ?ent wdt:P176 wd:Q137910. } ORDER BY ASC(?obj)LIMIT 5 
stainless steel: Q172587 thyssenkrupp ag: Q137910