erros on the Elfse if, why

if(input.I_want.contains "demo" && input.I_want.contains "supportcenter" )
{
     openUrl("http://www.manageengine.com/supportcenter","same window");
     else if(input.Sexe == "M")
     {
          openUrl("http://www.manageengine.com/supportcenter","same window");
     }
}