What does Joshua 17:16 mean?

And the children of Joseph said, The hill-country is not enough for us: and all the Canaanites that dwell in the land of the valley have chariots of iron, both they who are in Beth-shean and its towns, and they who are in the valley of Jezreel.

And the children of Joseph said, The hill is not enough for us: and all the Canaanites that dwell in the land of the valley have chariots of iron, both they who are of Beth–shean and her towns, and they who are of the valley of Jezreel.

And the children of Joseph said, The hill-country is not enough for us: and all the Canaanites that dwell in the land of the valley have chariots of iron, both they who are in Beth-shean and its towns, and they who are in the valley of Jezreel.

And the children of Joseph said, The hill-country is not enough for us: and all the Canaanites living in the valley have iron war-carriages, those in Beth-shean and its towns as well as those in the valley of Jezreel.

And the sons of Joseph say, `The hill is not found to us, and a chariot of iron <FI>is<Fi> with every Canaanite who is dwelling in the land of the valley--to him who <FI>is<Fi> in Beth-Shean and its towns, and to him who <FI>is<Fi> in the valley of Jezreel.'

And the children of Joseph answered him: We cannot go up to the mountains, for the Chanaanites that dwell in the low lands, wherein are situate Bethsan with its towns, and Jezrael in the midst of the valley, have chariots of iron.

And the children of Joseph said, The hill-country will not be enough for us; and all the Canaanites that dwell in the land of the valley have chariots of iron, those that are of Beth-shean and its dependent villages, and those that are in the valley of Jizreel.