What does 2 Kings 18:9 mean?

And it came to pass in the fourth year of king Hezekiah, which was the seventh year of Hoshea son of Elah king of Israel, that Shalmaneser king of Assyria came up against Samaria, and besieged it.

And it came to pass in the fourth year of king Hezekiah, which was the seventh year of Hoshea son of Elah king of Israel, that Shalmaneser king of Assyria came up against Samaria, and besieged it.

And it came to pass in the fourth year of king Hezekiah, which was the seventh year of Hoshea son of Elah king of Israel, that Shalmaneser king of Assyria came up against Samaria, and besieged it.

Now in the fourth year of King Hezekiah, which was the seventh year of Hoshea, son of Elah, king of Israel, Shalmaneser, king of Assyria, came up against Samaria, shutting it in with his armies.

And it cometh to pass, in the fourth year of king Hezekiah--it <FI>is<Fi> the seventh year of Hoshea son of Elah king of Israel--come up hath Shalmaneser king of Asshur against Samaria, and layeth siege to it,

In the fourth year of king Ezechias, which was the seventh year of Osee, the son of Ela, king of Israel, Salmanasar, king of the Assyrians, came up to Samaria, and besieged it,

And it came to pass in the fourth year of king Hezekiah, which was the seventh year of Hoshea the son of Elah, king of Israel, [that] Shalmaneser king of Assyria came up against Samaria and besieged it.