Complex sentence: Gavin & Terry are tired of this boredom and the terrible taste of boots, they visit and later join Professor Shoe, who has built a special helicopter-boot'Welly Copter' to travel to distant lands and adventures.
Split into simpler sentences: Gavin & Terry are tired of this boredom and the terrible taste of boots. They visit and later join Professor Shoe, who has built a special helicopter-boot'Welly Copter' to travel to distant lands and adventures.