Simplify the following text for a Grade 12 native English-speaking person.
Original: Frisian handball ( Dutch : kaatsen , Frisian : Keatsen ) is a traditional Frisian sport , related to American handball and fives , that is most commonly practiced by people from the northern province of FryslÃ cents n , or Friesland .
Simplified: Friesian handball ( Frisian Keatsen , ) is a traditional Friesian sport , related to American handball and fives , that is most commonly practiced by people from the northern province of FryslÃ cents n\/Friesland .