Text: It stands 137 m (450 ft) high and was the tallest structure in the world until the building of the Eiffel Tower in Paris in 1898.
Entailment: Until the Eiffel Tower in Paris was built in 1898, it was the tallest building in the world at 450 ft (137 m) high.
Contradiction: It is the tallest structure in the world at 450 ft high.