The task is about reading the given story and question, then finding an answer to the given question. Based on the passage provided and the given question, you should identify the shortest continuous text span from the passage that serves as an answer to the given question. Avoid answers that are incorrect or provides incomplete justification for the question.

Q: story: Ultratop is an organization which generates and publishes the official record charts in Belgium, and it is also the name of most of those charts. Ultratop is a non-profit organization, created on the initiative of the Belgian Entertainment Association (BEA), the Belgian member organization of the International Federation of the Phonographic Industry. Two parallel set of charts are concurrently produced and published, one on behalf of Belgium's Dutch-speaking Flanders region, and the other catering to the nation's French-speaking region of Wallonia. 

The music charts produced by Ultratop organization are separated along regional-language boundaries, an unusual division that is justified by the cultural differences in Belgium. So it is that the Dutch-speaking Flanders region has one set of charts of record activity there, while the French-speaking Wallonia region has another set to measure popularity in those provinces. 

The charts are broadcast on several Belgian radio stations, and on TV stations TMF in Flanders and Plug RTL in Wallonia. 

Ultratop creates charts based on record sales of around 500 retail outlets and legal digital downloads. Currently GfK is the market observer of the charts. The chart broadcasts on Radio Contact on Saturdays from 12:00 to 14:00. The combined number of Ultratop chart listeners on the various radio or TV stations exceeds two million every week. To celebrate the 10th anniversary of the charts in 2005, a jubilee book was published. It covers all 15,282 singles from 5,882 artists thus far., question: By what, in Belgium?

A: the cultural differences
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Q: story: A bracket is a tall punctuation mark typically used in matched pairs within text, to set apart or interject other text. The matched pair may be described as opening and closing, or left and right symbols. 

Forms include round (also called "parentheses"), square, curly (also called "braces"), and angle brackets (also called "chevrons"); and various other pairs of symbols. 

In addition to referring to the class of all types of brackets, the unqualified word "bracket" is most commonly used to refer to a specific type of bracket: in modern American usage this is usually the square bracket and in modern British usage this is usually the round bracket. 

Chevrons were the earliest type of bracket to appear in written English. Desiderius Erasmus coined the term "lunula" to refer to the rounded parentheses (), recalling the shape of the crescent moon. 

Some of the following names are regional or contextual. 

The characters ‹ › and « », known as guillemets or "angular quote brackets", are actually quotation mark glyphs used in several European languages. Which one of each pair is the opening quote mark and which is the closing quote varies between languages. 

In English, typographers generally prefer to not set brackets in italics, even when the enclosed text is italic. However, in other languages like German, if brackets enclose text in italics, they are usually set in italics too., question: What symbol did it refer to?

A: rounded parentheses
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Q: story: Oliver is a cat. He has a sister called Spike. Oliver and Spike like to play outside. They chase bugs in the backyard. When they get tired, they sleep in the sun. They don't like to go outside when it is raining. On rainy days Oliver and Spike sit in the window. They watch the rain through the window. Oliver is big and has grey and white fur. His nose is pink. Spike is small and has grey fur. Her nose is the same color as her fur. Spike is round. Oliver is tall. Oliver likes to eat. He worries when there is no food in his bowl. Spike likes to roll in dirt. Sometimes she is smelly. At Christmas time they like to play with the Christmas tree and presents. Oliver climbs the Christmas tree and breaks ornaments. Spike plays with the presents and unwraps them with her claws., question: what does spike do with the presents ?

A:
play with the Christmas tree and presents
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