Complex sentence: Known in the local Aboriginal language as Baiame's Ngunnhu, the traps are believed to be at least 40,000 years old, possibly the oldest surviving human-made structure in the world.
Split into simpler sentences: Known in the local Aboriginal language as Baiame's Ngunnhu. The traps are believed to be at least 40,000 years old, possibly the oldest surviving human-made structure in the world.