With signal mirrors, they attempted to shine reflected sunlight toward passing airplanes.
(they; attempted; to shine reflected sunlight toward passing airplanes) Context(they attempted,List([21, 35))):(they; attempted to shine; reflected sunlight toward passing airplanes)
they attempted,List([21, 35))
they they
attempted attempted to shine
to shine reflected sunlight toward passing airplanes
reflected sunlight toward passing airplanes