Complex sentence: Gill was swimming in a local pond one summer afternoon and upon exiting the pond, a buddy joked with Gill about his scrawny frame with his ribs protruding, which he said looked like slats in a picket fence.
Split into simpler sentences: Gill was swimming in a local pond one summer afternoon. Upon exiting the pond, a buddy joked with Gill about his scrawny frame with his ribs protruding, which he said looked like slats in a picket fence.