Complex sentence: Neill's Hill railway station is a disused railway station/halt on the main line of the Belfast and County Down Railway, which ran from Queen's Quay, Belfast south to Newcastle, County Down in Northern Ireland.
Split into simpler sentences: Neill's Hill railway station is a disused railway station/halt on the main line of the Belfast and County Down Railway. It ran from Queen's Quay, Belfast south to Newcastle, County Down in Northern Ireland.