Create a set of triples that describes the content in the following sentence.

The capital of England is London where we can find the Dead Man's Plack which is made of stone. The Plack is dedicated to thelwald, Ealdorman of East Anglia. Cornish language is spoken in England and it has an established religion called the Church of England. One of the ethnic groups found in that country is the British Arabs.
Dead Man's Plack LOCATION England
England ETHNIC_GROUPS British Arabs
England CAPITAL London
Dead Man's Plack DEDICATED_TO thelwald, Ealdorman of East Anglia
England LANGUAGES Cornish language
England RELIGION Church of England
Dead Man's Plack MATERIAL Rock (geology)