Complex sentence: WHFB Broadcast Associates purchased WHFB-FM in 1999 but it is operated by the owners of WSBT and WNSN in South Bend under a Local Marketing Agreement.
Split into simpler sentences: WHFB Broadcast Associates purchased WHFB-FM in 1999. It is operated by the owners of WSBT and WNSN in South Bend under a Local Marketing Agreement.