    ‘Sentence t The fascinating exhibits include a section of  ‘the massive chain that the Byzantines used to stretch  across the mouth of the Golden Hom bo keep out  enemy ships, as well as captured enemy cannon and    of unttorms, armour, and weapons trom the earkest days  of the Empire down to the 20th century    Sentence 2 A chain was used and streiched to prevent  ‘enemy ships from entering.