Complex sentence: As the patrons argue about the likelihood of such ornithological behavior, Melanie notices birds swooping at a man across at the gas station-she alerts the others and they witness the man knocked unconscious while filling a car with fuel, which spills out onto the street.
Split into simpler sentences: As the patrons argue about the likelihood of such ornithological behavior, Melanie notices birds swooping at a man across at the gas station. She alerts the others and they witness the man knocked unconscious while filling a car with fuel, which spills out onto the street.