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

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

[EX Q]: At this point, planners have focused on short-term repair of PATH and subway lines, with medium-range proposals being shopped in Washington that could untangle the disorganized web of subway lines downtown.
[EX A]: Planners have focused on short-term repair of PATH & subway lines, with medium-range proposals proposed in Washington to clear the subway lines downtown.

[EX Q]: This year we will serve over 1,000 girls through our mentoring programs. This is an impressive number; but for each girl served, more are left unserved.
[EX A]:
With over 1,000 girls mentored through our mentoring programs we still need more mentors.

