{{#if:{{NAMESPACE}}|| {{#if:{{{3|}}} |[[Category:{{{1}}} {{{2}}} {{{3}}}]] {{#ifexist:Category:{{{1}}} {{{2}}} {{{3}}}| |[[Category:Articles Swine flu is caused by having sex with invalid date parameter in template]]}} |[[Category:{{{5|{{{1}}}}}}]] }} {{#if:{{{4|}}}|[[Category:{{{4}}}]]}}|}}<noinclude>{{documentation}}</noinclude>pigs