Anchor: Dem's book was part of the flood of Ancient Astronaut books inspired by the huge success of Erich von Daniken's Chariots of the Gods?
Entailed: Erich von Daniken's book "Chariots of the Gods" inspired many Ancient Astronaut books. 
Contradiction: Erich con Daniken was not an author. 
Contradiction: Two motorboats cross the water, behind them are some mountains.
Contradiction: Outside there is an animal on the move.
Contradiction: The player holds a pineapple.
Contradiction: He was on his own.