Complex sentence: Bus Éireann route 118 provides a daily commuter service from Killucan to Dublin and a daily service to/from Mullingar, which additionally serves Rathwire.
Split into simpler sentences: Bus Éireann route 118 provides a daily commuter service from Killucan to Dublin. Route 118 also offers a daily service to/from Mullingar, which additionally serves Rathwire.