Assertion: day's origin | /r/CapableOf | pin to specific time
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Source sentences:
text: Though the origin of the practice of wrapping a tall pole in ribbon and woven tree branches is difficult to pin to a specific time and place, historians agree that the Maypole began as a part of the Pagan May Day festival known as Beltane in the UK and Ireland and Walpurgis in Germanic European countries.