The Dead Man's Plack which is made of rock and is dedicated to Æthelwald, Ealdorman of East Anglia is located in England . The capital of England is London and Cornish is a language spoken in the Cornwall region.
[["Dead Man's Plack", 'LOCATION', 'England'], ['England', 'ETHNIC_GROUPS', 'British Arabs'], ['England', 'CAPITAL', 'London'], ["Dead Man's Plack", 'DEDICATED_TO', 'Æthelwald, Ealdorman of East Anglia'], ['England', 'LANGUAGES', 'Cornish language'], ["Dead Man's Plack", 'MATERIAL', 'Rock (geology)']]