Question: Coppull is a village and civil parish in Lancashire, England, it is bounded by which river, in Lancashire, with its source at an area called "Will Narr" at "Hordern Stoops", along Spitlers Edge - the Chorley/Blackburn boundary - on the West Pennine Moors?
{'answer': 'River Yarrow', 'supporting_facts': [['Coppull', 3], ['River Yarrow (Lancashire)', 0]]}