[["Dead Man's Plack", 'LOCATION', 'England'], ['England', 'CAPITAL', 'London'], ['England', 'LANGUAGES', 'Cornish language'], ["Dead Man's Plack", 'MATERIAL', 'Rock (geology)']]
The Dead Man's Plack is a rock formation in Cornwall. Located to the west of England's capital, London, Cornwall is a county with its own language, known as Cornish.