Lee Hyo-jae
... that social activist Lee Hyo-jae's efforts helped abolish South Korea's patriarchal naming system, allowing people to use both parents' surnames?
... that social activist <b id="mwMw"><a href="./Lee_Hyo-jae" id="mwNA" rel="mw:WikiLink" title="Lee Hyo-jae">Lee Hyo-jae</a></b><span about="#mwt18" class="nowrap" data-mw='{"parts":[{"template":{"target":{"wt":"`s","href":"./Template:`s"},"params":{},"i":0}}]}' id="mwNQ" typeof="mw:Transclusion"><span typeof="mw:Entity">'</span>s</span> efforts helped abolish South Korea's patriarchal naming system, allowing people to use both parents' surnames?