Complex sentence: Selånger Fotbollklubb was founded in 1921 as Selånger Sportklubb (Selånger SK) and are now one of the biggest clubs in Västernorrland with 650 members.
Split into simpler sentences: Selånger Fotbollklubb was founded in 1921 as Selånger Sportklubb (Selånger SK). The football club are now one of the biggest clubs in Västernorrland with 650 members.