library system
... that the library system of the University of Toronto is the fourth-largest academic library in North America?
... that the <b id="mwGDs"><a href="./University_of_Toronto_Libraries" id="mwGDw" rel="mw:WikiLink" title="University of Toronto Libraries">library system</a></b> of the <a href="./University_of_Toronto" id="mwGD0" rel="mw:WikiLink" title="University of Toronto">University of Toronto</a>  is the fourth-largest <a href="./Academic_library" id="mwGD4" rel="mw:WikiLink" title="Academic library">academic library</a> in <a href="./North_America" id="mwGD8" rel="mw:WikiLink" title="North America">North America</a>?