[src NP VP] (,) while [tgt NP AUX] (4 cases)

wsj_0362 (line 5, ant vp):
By concentrating all their resources on the pay raise, Wright and Tower, the networks actually overlooked some major stories that showed the flaws and shortcomings of the institution. . . . An imaginative producer could easily have created a fast-moving and interesting piece about how Congress really works -- and why voters in, say, West Virginia got a federally funded university project and building while voters in Arkansas did not.

wsj_0922 (line 20, ant np):
In part, this division is dictated by economics: West Germany is a net exporter of capital while the U.S. isn't.

wsj_1394 (line 73, ant vp):
But from early on, Tiger's workers unionized, while Federal's never have.

wsj_1790 (line 28, ant vp):
HERE'S ONE more explanation for why Japan is a tough industrial competitor: Two of three Japanese employees submit suggestions to save money, increase efficiency and boost morale, while only 8% of American workers do.