Complex sentence: Released in 1947, Raevsky was rehabiliated in 1957 and re-admitted to the Communist Party, but was subjected to internal Party discipline in the early 1960s for his active part in the Solovki executions.
Split into simpler sentences: Released in 1947, Raevsky was rehabiliated in 1957 and re-admitted to the Communist Party. In the early 1960s, he was subjected to internal Party discipline for his active part in the Solovki executions.