Complex sentence: CK's has 20 stores, operating as part of the Nisa-Today's chain, and was founded by Christopher Kyley in 1988, when the original store was opened in Llandeilo.
Split into simpler sentences: CK's has 20 stores and operates as part of the Nisa-Today's chain. It was founded by Christopher Kyley in 1988 when the original store opened in Llandeilo.