Given a text, write a compressed version of it in a single sentence.

Q: GAO, headed by the Comptroller General, is a principal means by which the legislative branch conducts oversight of executive programs and activities.

A: GAO, headed by the Computroller General is a principal by which the legislative branch oversees activities.
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Q: Betancuria, by far the most attractive and visited inland town on the island, is an oasis of greenery on this barren island. Although the riverbed here is almost perpetually dry, the town is fortunate to have a high water table.

A: Although the riverbed here is almost perpetually dry. Betancuria, by far the most attractive and visited inland town on the island.
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Q: Second, if federal budget surpluses are achieved, in part, through higher taxes, those higher taxes reduce households' disposable personal income. As discussed in section 1, disposable personal income is the after-tax personal income (including government transfer payments) available for households' consumption and saving.

A:
If federal budget surpluses are achieved, through higher taxes, those higher taxes reduce households' disposable personal income. Disposable personal income is the after-tax personal income available for households' consumption and saving.
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