<http://schema.org/keywords>
"fifa 2018 world cup 2017 Confederation Cup world cup Confederation Cup 2018 World Cup dates 2017 Confederation Cup dates Confederation Cup 2017 world cup 2018 fifa world cup"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.si.com/planet-futbol/2015/03/20/2018-world-cup-2017-confederation-cup-dates>