What is the subclass and model number of a belt sander that uses the least power?
select ?ent where { ?ent wdt:P31 wd:Q23811260 . ?ent wdt:P2791 ?obj . ?ent wdt:P279 wd:Q1327701} ORDER BY ASC(?obj)LIMIT 5 
belt sander model: Q23811260 power tool: Q1327701