gas explosion
... that some candidates in the 2013 Argentine legislative election ended their political campaigns after a gas explosion in Rosario?
... that some candidates in the <a class="mw-redirect" href="./Argentine_legislative_election,_2013" id="mwCJ8" rel="mw:WikiLink" title="Argentine legislative election, 2013">2013 Argentine legislative election</a> ended their political campaigns after a <b id="mwCKA"><a href="./2013_Rosario_gas_explosion" id="mwCKE" rel="mw:WikiLink" title="2013 Rosario gas explosion">gas explosion</a></b> in <a class="mw-redirect" href="./Rosario,_Santa_Fe" id="mwCKI" rel="mw:WikiLink" title="Rosario, Santa Fe">Rosario</a>?