Assertion: archipelago's island | /r/HasProperty | separated by channel
Facets:
value: from the tanzanian mainland
type: LOCATION
Source sentences:
text: The island is separated from the Tanzanian mainland by a channel, which at its narrowest point is 36.5 kilometres (22.7 mi) across.
text: The island is separated from the Tanzanian mainland by a channel some 56 kilometres (35 mi) wide.