Given a reference text about Adventfjorden, how wide and long is it?
Adventfjorden (Advent Bay) is a 7 km long and 4 km wide bay running south-eastwards from the southern side of Isfjorden, on the west coast of Spitsbergen in Svalbard. The name represents a corruption of Adventure Bay - probably named after the Hull-built whaleship Adventure, which operated in Isfjorden in 1656. The fjord was originally[when?] known as Klass Billen Bay. At the head of Adventfjorden is Adventdalen (Advent Valley).

The former mining-camp of Longyearbyen (now Svalbard's main town) lies on the fjord's southwestern shore, while another former mining-camp, Hiorthhamn, is located on its northeastern shore.
Adventfjorden is 4km wide and 7km long.
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Adventfjorden (Advent Bay) is a 7 km long and 4 km wide bay running south-eastwards from the southern side of Isfjorden, on the west coast of Spitsbergen in Svalbard. The name represents a corruption of Adventure Bay - probably named after the Hull-built whaleship Adventure, which operated in Isfjorden in 1656. The fjord was originally[when?] known as Klass Billen Bay. At the head of Adventfjorden is Adventdalen (Advent Valley).

The former mining-camp of Longyearbyen (now Svalbard's main town) lies on the fjord's southwestern shore, while another former mining-camp, Hiorthhamn, is located on its northeastern shore.
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Answer the following query.
Given a reference text about Adventfjorden, how wide and long is it?

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Adventfjorden is 4km wide and 7km long.
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