Then a postorder on T is obtained by concatenating postorders of the subtrees of T rooted at ...

Every elf, and fairy sprite, / Hop as light as bird from brier.

My faither was on a strong mare, and I was on a bit powney; and amang the cattle there was a camstairy three-year-auld bull, that wad neither hup nor drive.

His protective senior staff decided the secretary was being outspun.