Please help with the following sentences. 'It's a dull county, I think. Quite featureless. Walter says that it is a constant permutation of the same seven "props": six trees and a haystack. Indeed he says that there is a phrase in the county regiment's official march that says quite plainly: Six trees and a hay-stack!' She sang the phrase for him. 'But where you see the bump in the road is the beginning of Orfordshire, and that is much more satisfying.' 1) a constant permutation of the same seven "props" Are the seven 'props' all in the same order implied by this sentence? 2)county regiment's official march What does this sentence mean?