Complex sentence: They began writing the song on the tour bus, and continued later that night at their hotel in Newcastle eventually completing it the following day at McCartney's family home in Forthlin Road, Liverpool.
Split into simpler sentences: They began writing the song on the tour bus, and continued later that night at their hotel in Newcastle eventually completing it at McCartney's Liverpool home. It was completed the following day at McCartney's family home in Forthlin Road, Liverpool.