Complex sentence: The King Harry Steam Ferry was initiated in 1888 as a submerged chain ferry, using a steam engine to pull the ferry along the chains, and replacing a manually propelled barge that was previously used on the route.
Split into simpler sentences: The King Harry Steam Ferry was initiated in 1888 as a submerged chain ferry using a steam engine to pull the ferry along the chains. The steam ferry replaced a manually propelled barge that was previously used on the route.