Complex sentence: In June 2014 GNWR successfully concluded negotiations with Network Rail for access paths to run between Euston and Blackpool and Leeds (6 each per day), from 2017 using Pendolino trains, additionally, access was only guaranteed as far as Queen's Park.
Split into simpler sentences: In June 2014 GNWR successfully concluded negotiations with Network Rail for access paths to run between Euston and Blackpool and Leeds (6 each per day), from 2017 using Pendolino trains. However, access was only guaranteed as far as Queen's Park.