Complex sentence: Trebanog is an outlying district of the community of Cymmer, which itself is a district of the town of Porth, it is neighboured by the settlement of Edmondstown (a district of Penygraig) and it is located within the historic county of Glamorgan.
Split into simpler sentences: Trebanog is an outlying district of the community of Cymmer, which itself is a district of the town of Porth. It is neighboured by the settlement of Edmondstown (a district of Penygraig) and it is located within the historic county of Glamorgan.