Name the standard mainland China character in the Table of Jōyō kanji with the highest stroke count ?
select ?ent where { ?ent wdt:P31 wd:Q15904197 . ?ent wdt:P5205 ?obj . ?ent wdt:P972 wd:Q55502741 } ORDER BY DESC(?obj)LIMIT 5 
standard hanzi in mainland china: Q15904197 table of jōyō kanji: Q55502741