<human>:  I have a question about the Stonehenge on Salisbury Plain. What is the meaning of the name Stonehenge?
<bot>: The name Stonehenge comes from the Old English words st<unk>n meaning stone and h<unk>n meaning henge. The name is thought to refer to the fact that the stones were used as a henge, or a circle of stones, to mark the sun's passage through the sky.