Irish Sea

Columns: Name | Area ( km² ) | Rank ( area ) | Permanent Population | Rank ( pop . ) | Country
Calf of Man | 2.50 | 08 | 0 | - | Isle of Man | Barrow Island | 1.50 | - | 2,616 | 05 | England | Roa Island | 0.03 | - | 100 | 06 | England | Ynys Gaint | 0.04 | - | < 10 | 08 | Wales | Piel Island | 0.20 | - | < 5 | 10 | England | Ynys Castell | 0.006 | - | < 5 | 10 | Wales | Ynys Gored Goch | 0.004 | - | < 5 | 10 | Wales

Example questions:
What political group was created in 1925 in the country that owns the island in the Irish Sea where Mynydd Enlli can be found ? | What beach runs along the whole stretch of the island from the same country as the island in the Irish Sea also known as Reachrainn ? | What trust foundation owns the unpopulated island in the Irish Sea in the country that was ruled by Nordic peoples until the Treaty of Perth ? | What is the English name of the highest peak in the country where the Irish Sea island of Saint Cybi can be found ?

Answers:
Plaid Cymru | Dollymount Strand | Manx National Heritage | Snowdon