But they contend most of the climate change is caused by oceans, clouds, water vapor, even sunspots and the tilt of the Earth's axis.
(they; contend; most of the climate change is caused by oceans, clouds, water vapor) Context(they contend,List([4, 16))):(most of the climate change; is caused; by oceans, clouds, water vapor)
they contend,List([4, 16))
they most of the climate change
contend is caused
most of the climate change is caused by oceans, clouds, water vapor
by oceans, clouds, water vapor