national parliamentary election in the First Czechoslovak Republic
... that the Social Democrats were the only party to win more than 16% of the vote in any national parliamentary election in the First Czechoslovak Republic?
... that the <a class="mw-redirect" href="./Czech_Social_Democratic_Party" id="mwC1c" rel="mw:WikiLink" title="Czech Social Democratic Party">Social Democrats</a> were the only party to win more than 16% of the vote in any <b id="mwC1g"><a href="./Elections_in_the_First_Czechoslovak_Republic" id="mwC1k" rel="mw:WikiLink" title="Elections in the First Czechoslovak Republic">national parliamentary election in the First Czechoslovak Republic</a></b>?