required to admit
... that public primary schools in Hong Kong are required to admit siblings of current students?
... that public <a href="./Education_in_Hong_Kong#Primary_and_secondary_schools" id="mwB4w" rel="mw:WikiLink" title="Education in Hong Kong">primary schools in Hong Kong</a> are <b id="mwB40"><a href="./Primary_One_Admission_System" id="mwB44" rel="mw:WikiLink" title="Primary One Admission System">required to admit</a></b> siblings of current students?