In this task, we ask you to rewrite a sentence in simple English without changing its general meaning. Essentially, you want to make the sentence easier to read by using simpler words, utilizing more straightforward sentence structures, and omitting non-essential information etc.
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Question: A wiki hosting service or wiki farm is a server or an array of servers that offers users tools to simplify the creation and development of individual , independent wikis .

Answer: A wiki farm is a site where you can create your own wiki .


Question: O ̈ rebro Sportklubb , more commonly known as O ̈ rebro SK , O ̈ rebro or ( especially locally ) O ̈ SK , are a Swedish professional football club based in O ̈ rebro .

Answer: O ̈ rebro SK is an association football club in the town of O ̈ rebro in Sweden .


Question: The causes of bipolar disorder likely vary between individuals and the exact mechanism underlying the disorder remains unclear .

Answer:
The exact cause of bipolar disorder is unknown .