suicides
... that drainage pits under London Underground tracks help reduce the number of suicides?
... that drainage pits under <a href="./London_Underground" id="mwCA0" rel="mw:WikiLink" title="London Underground">London Underground</a> tracks help reduce the number of <b id="mwCA4"><a href="./Suicide_on_the_London_Underground" id="mwCA8" rel="mw:WikiLink" title="Suicide on the London Underground">suicides</a></b>?