Question: What are the two most successful teams in spains soccer clubs?

context: In La Liga's 89-year history (with the exception of the three seasons that the league was suspended due to the civil war), Barcelona and Real Madrid have won 59 titles between them. Barcelona and Real Madrid are two fierce rivals clubs, and the matches between both two clubs are named as "El Clásico". Those football matches are one of the most viewed sports events in the world.
question: Which two Spanish Football Clubs have won La Liga the most?|Which two Spanish Football Clubs have won the most major honors?
short_answers: Barcelona and Real Madrid
context: Real Madrid is the most successful club with 33 titles. The most recent club other than Real Madrid and Barcelona to win the league is Atlético Madrid in the 2013–14 season. Barcelona has won the Spanish version of the double the most times, having won the league and cup in the same year eight times in its history, three more than Athletic Bilbao's five. Barcelona is the only UEFA club to have won the treble twice after accomplishing that feat in 2015. The current champions are Barcelona, who won the 2018–19 competition.
question: What is one of the most successful soccer teams in Spain's soccer club?
short_answers: Real Madrid
context: Barcelona is the second most successful club in the FIFA Club World Cup, with three titles, and it is also the most successful club in the UEFA Super Cup (five titles, shared record with Milan). In addition, Barcelona became the first football club to win six out of six competitions in a single year (2009) completing the sextuple, and the first European club in history to achieve the continental treble twice (2009 and 2015).
question: What is one of the most successful soccer teams in Spain?
short_answers: Barcelona

Answer: Among the most successful teams in Spain's soccer clubs are Barcelona and Real Madrid, the two Spanish football clubs that have won La Liga the most and have won the most major honors. In La Liga's history, the two clubs have won 59 titles between them. Real Madrid is the most successful club with 33 titles. Barcelona is the second most successful club in the FIFA Club World Cup, with three titles, and is the most successful club in the UEFA Super Cup with five titles.