Complex sentence: It was on the Ballycastle Railway, a narrow gauge railway which ran for 17 miles connecting Ballycastle to Ballymoney, on the Belfast and Northern Counties Railway (BNCR), later Northern Counties Committee (NCC), main line to Derry.
Split into simpler sentences: It was on the Ballycastle Railway, a narrow gauge railway that ran for 17 miles between Ballycastle and Ballymoney. This was part of the Belfast and Northern Counties Railway (BNCR), later Northern Counties Committee (NCC), main line to Derry.