Name the bisphonel A polymer with the lowest Young's modulus ?
select ?ent where { ?ent wdt:P31 wd:Q81163 . ?ent wdt:P5480 ?obj . ?ent wdt:P4600 wd:Q271980. } ORDER BY ASC(?obj)LIMIT 5 
polymer: Q81163 bisphenol a: Q271980