Trailblazer
... that the Trailblazer was the first commercially operated monorail system in the United States?
... that the <b id="mwCY4"><a href="./Trailblazer_(monorail)" id="mwCY8" rel="mw:WikiLink" title="Trailblazer (monorail)">Trailblazer</a></b> was the first commercially operated <a href="./Monorail" id="mwCZA" rel="mw:WikiLink" title="Monorail">monorail</a> system in the United States?