Complex sentence: London Country Bus Services was a bus company that operated in South East England from 1969 until 1986, when it was split up and sold under Margaret Thatcher's Conservative Government bus deregulation scheme.
Split into simpler sentences: London Country Bus Services was a bus company that operated in South East England from 1969 until 1986. The company was then split up and sold under Margaret Thatcher's Conservative Party Government bus deregulation scheme.