Complex sentence: Swamy semi-retired from acting in 2000 after playing a guest role in Mani Ratnam's "Alaipayuthey" and concentrated on his business interests.
Split into simpler sentences: Swamy semi-retired from acting in 2000 after playing a guest role in Mani Ratnam's "Alaipayuthey". The actor took a break from films and concentrated on his business interests.