The minimal setup includes:
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Медведев вышел в финал турнира в Дубае17:59
二二八事件被視為台灣歷史上的集體創傷，於1995年被定為「國定紀念日」，卻曾有長達40年無法公開談論。
Transforms don't execute until the consumer pulls. There's no eager evaluation, no hidden buffering. Data flows on-demand from source, through transforms, to the consumer. If you stop iterating, processing stops.